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Hospitalización domiciliaria para evitar el ingreso en hospital

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Resumen

Antecedentes

La hospitalización domiciliaria de evitación del ingreso es un servicio que proporciona tratamiento activo por parte de profesionales sanitarios en el domicilio del paciente para una afección que, de otro modo, requeriría una atención hospitalaria para enfermedades agudas y siempre por un período de tiempo limitado. Esta es la cuarta actualización de esta revisión.

Objetivos

Determinar la efectividad y el coste de la gestión de los pacientes con hospitalización domiciliaria de evitación del ingreso en comparación con la atención hospitalaria.

Métodos de búsqueda

Se hicieron búsquedas en el Registro Cochrane central de ensayos controlados (Cochrane Central Register of Controlled Trials; CENTRAL), MEDLINE, Embase y CINAHL el 24 de febrero de 2022 y se comprobaron las listas de referencias de los artículos elegibles. Para detectar estudios no publicados o en curso se buscó en clinicalTrials.gov y en la ICTRP de la OMS y se estableció contacto con sanitarios e investigadores de este campo.

Criterios de selección

Ensayos controlados aleatorizados que reclutaron participantes de 18 años o más. Estudios que compararon la hospitalización domiciliaria de evitación de ingresos con la atención hospitalaria de agudos.

Obtención y análisis de los datos

Se siguieron los procedimientos metodológicos estándar previstos por Cochrane y el Grupo Cochrane para una Práctica y organización sanitaria efectivas (Effective Practice and Organisation of Care Group; EPOC). Se realizó el metanálisis de los ensayos que compararon intervenciones similares, informaron sobre desenlaces comparables con datos suficientes y utilizaron datos individuales de pacientes cuando fue posible. Se utilizó el sistema GRADE para evaluar la certeza del conjunto de evidencia para los desenlaces más importantes.

Resultados principales

Se incluyeron 20 ensayos controlados aleatorizados con un total de 3100 participantes; cuatro ensayos reclutaron a participantes con enfermedad pulmonar obstructiva crónica, dos ensayos reclutaron a participantes que se recuperaban de un accidente cerebrovascular, siete ensayos reclutaron a participantes con una afección médica aguda que eran principalmente personas mayores, y los ensayos restantes reclutaron a participantes con una combinación de afecciones. Se evaluó la mayoría de los estudios incluidos como de bajo riesgo de sesgo de selección, detección y desgaste, y riesgo incierto en cuanto al informe selectivo y el sesgo de realización.

En personas mayores, la hospitalización domiciliaria de evitación del ingreso probablemente suponga poca o ninguna diferencia en la mortalidad a los seis meses de seguimiento (razón de riesgos [RR] 0,88; intervalo de confianza [IC] del 95%: 0,68 a 1,13; p = 0,30; I 2 = 0%; cinco ensayos, 1502 participantes; evidencia de certeza moderada), poca o ninguna diferencia en la probabilidad de reingreso en el hospital tras el alta de la hospitalización domiciliaria o atención hospitalaria en los 3 a 12 meses de seguimiento (RR 1,14; IC del 95%: 0,97 a 1,34; p = 0,11; I 2 = 41%; ocho ensayos, 1757 participantes; evidencia de certeza moderada) y probablemente reduzca la posibilidad de vivir en una residencia a los seis meses de seguimiento (RR 0,53; IC del 95%: 0,41 a 0,69; p < 0,001; I 2 = 67%; cuatro ensayos, 1271 participantes; evidencia de certeza moderada).

Es probable que la hospitalización domiciliaria dé lugar a poca o ninguna diferencia en el estado de salud autoinformado del paciente (2006 pacientes; evidencia de certeza moderada). La satisfacción con la atención sanitaria recibida podría mejorar con la hospitalización domiciliaria de evitación de ingresos (1812 participantes, evidencia de certeza baja); pocos estudios informaron sobre el efecto en los cuidadores. La hospitalización domiciliaria redujo la duración media inicial de la estancia hospitalaria (2036 participantes; evidencia de certeza baja), que varió de 4,1 a 18,5 días en el grupo del hospital y de 1,2 a 5,1 días en el grupo de hospitalización domiciliaria. La duración de la hospitalización domiciliaria varió en una media de 3 a 20,7 días (grupo de hospitalización domiciliaria solo). Es probable que la hospitalización domiciliaria de evitación del ingreso reduzca los costes del servicio sanitario en comparación con el ingreso hospitalario (2148 participantes; evidencia de certeza moderada), aunque en cantidades variables y mediante distintos métodos para calcular el coste del uso de recursos y existe evidencia de que reduce los costes sociales generales en el seguimiento a los seis meses.

Conclusiones de los autores

La hospitalización domiciliaria de evitación del ingreso hospitalario, con la opción de traslado al hospital, podría constituir una alternativa eficaz al ingreso hospitalario para un grupo determinado de personas de edad avanzada que requieren ingresar en el hospital. Es probable que la intervención suponga poca o ninguna diferencia en los desenlaces de salud del paciente, podría mejorar la satisfacción, probablemente reduzca la posibilidad de internamiento en una residencia y probablemente reduzca los costes.

PICOs

Population
Intervention
Comparison
Outcome

The PICO model is widely used and taught in evidence-based health care as a strategy for formulating questions and search strategies and for characterizing clinical studies or meta-analyses. PICO stands for four different potential components of a clinical question: Patient, Population or Problem; Intervention; Comparison; Outcome.

See more on using PICO in the Cochrane Handbook.

Resumen en términos sencillos

Servicios de «hospitalización a domicilio» para evitar el ingreso en el hospital

¿Cuál es el objetivo de esta revisión?

El objetivo de esta revisión Cochrane fue averiguar si la prestación de asistencia sanitaria en un contexto de hospitalización domiciliaria para evitar el ingreso en el hospital mejora los desenlaces de salud de los pacientes y reduce el coste del servicio de salud.

Mensajes clave

La hospitalización domiciliaria de evitación del ingreso probablemente apenas influya en el riesgo de muerte; probablemente aumente las posibilidades de vivir en casa a los seis meses de seguimiento y podría ser ligeramente más económica.

¿Qué se estudió en esta revisión?

La demanda de camas de hospital para enfermedades agudas sigue superando la cantidad de camas disponibles. Una forma de reducir la dependencia de las camas de hospital es proporcionar a las personas asistencia sanitaria aguda en casa, a veces llamada «hospitalización domiciliaria de evitación del ingreso». Por contra, la «hospitalización domiciliaria de alta temprana» hace referencia a los pacientes que son dados de alta del hospital de forma anticipada para ser tratados en casa; este tema se ha analizado en otra revisión.

¿Qué se quiso averiguar?

Se quiso saber si la hospitalización domiciliaria afecta a los desenlaces de salud del paciente y a su vida independiente en su domicilio. También se quiso averiguar si era más económica que la atención hospitalaria y si afectaba a la duración del tratamiento y a la satisfacción del paciente.

¿Qué se hizo?

Se buscaron estudios que compararan el tratamiento con hospitalización domiciliaria para un episodio agudo con la atención con ingreso en el hospital. Los resultados de estos estudios se compararon y resumieron, y la confianza en la evidencia se calificó según factores como la metodología y el tamaño de los estudios.

¿Qué se encontró?

Se encontraron 20 estudios, de los cuales cuatro se identificaron en esta actualización, con un total de 3100 pacientes con un abanico de afecciones agudas. Cuatro estudios incluyeron a participantes con enfermedad pulmonar obstructiva crónica; dos incluyeron a participantes que se recuperaban de un ictus; siete incluyeron a participantes con una afección médica (repentina o a corto plazo) que eran principalmente personas mayores, y los estudios restantes incluyeron a participantes con una mezcla de enfermedades.

En comparación con la atención en el hospital, los servicios de hospitalización domiciliaria de evitación del ingreso probablemente apenas supongan una diferencia en el riesgo de muerte o en la probabilidad de ser llevados al hospital en los 3 a 12 meses siguientes, y probablemente aumenten las posibilidades de continuar viviendo en el domicilio a los seis meses de seguimiento. Los pacientes que reciben atención domiciliaria podrían tener mayor satisfacción en comparación con quienes están ingresados en el hospital; los efectos de este tipo de atención sobre sus cuidadores no están claros. Es probable que la hospitalización domiciliaria dé lugar a poca o ninguna diferencia en el estado de salud del paciente. La hospitalización domiciliaria reduce el tiempo que pasan los pacientes en el hospital, aunque la duración de la hospitalización domiciliaria tendió a ser más larga que la estancia hospitalaria habitual. Es probable que la hospitalización domiciliaria de evitación del ingreso reduzca los costes del tratamiento, aunque en unas cantidades variables.

¿Cuáles son las limitaciones de la evidencia?

Debido al pequeño tamaño de la mayoría de estudios, se tiene una confianza moderada en que la hospitalización domiciliaria de evitación del ingreso no supone una diferencia en la cifra de personas que fallecen al compararla con la atención en el hospital. La confianza en la evidencia para el reingreso hospitalario y el internamiento en residencias se redujo a moderada debido a que las duraciones del seguimiento difirieron de un estudio a otro. Se tiene una confianza moderada en la evidencia para los estados de salud comunicados por el paciente, ya que los participantes eran conocedores del tratamiento que estaban recibiendo, lo cual podría haber influido en los resultados. Se tiene poca confianza en la evidencia acerca de la satisfacción del paciente, ya que hubo pocos estudios que informaran acerca de este desenlace, y acerca de la duración de la estancia, ya que esta varió de un estudio a otro. Se tiene una confianza moderada en la evidencia acerca del coste, debido a que solo tres ensayos lo analizaron en profundidad.

¿Cuál es el grado de actualización de la revisión?

Se buscaron estudios publicados hasta febrero de 2022.

Authors' conclusions

Implications for practice

Admission avoidance hospital at home, with the option of transfer to hospital, may provide an effective alternative to inpatient care for selected patients who require hospital admission. The 20 trials included in this review were conducted in several different countries. Although the health systems in these countries vary with respect to the way healthcare financing is structured, the policy objectives are the same, with admission avoidance hospital at home being provided to control costs and reduce demand for inpatient hospital beds (Aviv 2021; Naik 2006; Oliver 2021). The level of primary care in a country, and the enthusiasm of local clinicians and healthcare managers, may determine the degree to which admission avoidance hospital at home operates as an outreach model or is run by supplementing existing primary care services. Other aspects that might vary by health system include the level of integration with existing services to avoid duplication of services, for example using existing out‐of‐hours services as in a single‐payer system with free access at the point of care versus setting up a new out‐of‐hours service for patients that do not have access to this through their usual healthcare coverage (such as in a multipayer health system). Admission avoidance hospital at home may not completely substitute for hospital, as hospital admission remains an option if required, for example patients whose condition unexpectedly deteriorated or who could no longer be managed at home had access to transfer to a traditional acute hospital ward. Policymakers should consider what type of hospital care is planned to be substituted with hospital at home, and the impact this will have on cost‐effectiveness.

The way health care for the control group is organised will have an impact on cost‐effectiveness, for example the routine use of comprehensive geriatric assessment to structure hospital care will provide an additional layer of geriatrician‐led multidisciplinary assessment and co‐ordination of care that can improve outcomes (Ellis 2017). The entry criteria required that patients be clinically stable and not require specialist diagnostic investigation or emergency interventions. Patients eligible for the trials included in this review did not include those whose condition was so severe that death was an expected outcome. Furthermore, patients whose condition deteriorated or who could no longer be managed at home had access to hospital admission.

Although admission avoidance hospital at home provides an alternative to inpatient admission for some patients, the volume of such patients recruited to the included trials was comparatively low, and some of these patients required access to hospital services, which might make the closure of a ward or hospital in favour of hospital at home an unrealistic option. In Shepperd 2021, 37/687 (5%) participants allocated to hospital at home received required admission to hospital bed‐based care, and 76/345 (22%) participants allocated to hospital instead received hospital at home care. This indicates that some patients require a greater intensity of care due to their condition deteriorating, that others have a preference for health care in their own home, and at times when no hospital beds were available for those randomised to hospital admission, hospital at home admission was required. Being less likely to be relocated to residential care at follow‐up might be due to the location of the patient influencing the decision to move to residential care, or be related to the patient's maintaining their usual routines at home while avoiding some of the harms associated with the inpatient environment such as sleep deprivation, poor nutrition, confusion, and falls and infection risk (Mudge 2019). A reduction in relocating to residential care may contribute to cost savings from hospital at home.

Many of the studies in this review are over 10 years old and do not reflect the recent improvement of remote patient monitoring technology. These developments are advancing rapidly and may allow hospital at home to care for different groups of patients. However, there have been concerns about excluding patients based on their or their caregiver's low technological literacy (British Geriatrics Society 2022).

Implications for research

Over the last 20 years the randomised evidence has grown from 1 to 20 trials, using a pragmatic randomised trial design that includes a process evaluation to inform real‐world implementation.

Future research of admission avoidance hospital at home should assess the impact of hospital at home services in more disadvantaged populations, who are more likely to have a higher percentage of informal caregivers (Young 2005). Mortality should be measured, in particular during admission to hospital at home and hospital, along with transfer to hospital during a hospital at home admission, readmission to hospital after discharge from hospital at home or inpatient care, relocation to residential care at follow‐up, and cost‐effectiveness. Studies should clarify if mortality during the acute episode was assessed as related to the hospital at home intervention or hospital control and unexpected.

There is little evidence on the impact of hospital at home on patients, caregivers and their networks, despite the potential for them to have a significant role when health care is being delivered in the patient's home. A qualitative study linked to the randomised trial by Shepperd 2021 (Makela 2020) describes how patients and caregivers facilitate the delivery of hospital at home care, and this includes monitoring the patient. A recent study found that caregiver burden should be a key aspect to assessing appropriate social support during hospital at home (Levine 2021). Additional evidence on how staff experience hospital at home, the training required, and how roles evolve would help with workforce planning (e.g. Karacaoglu 2021; Leary 2022), and if hospital at home services represent a shift in care provision to patients' families and lower skilled workers (Batt 2023). A recent survey identified several domains for future research, including defining the type of hospital at home care, defining optimal study outcomes, patient and caregiver experience, the education of hospital at home clinicians, and the use of technology and telehealth, among others (Leff 2022). Other important outcomes for future research should include the assessment of unintended impacts, person‐centred care, advanced care planning, and the impact on unpaid carers and their networks. As hospital at home services are more widely implemented, evidence on the impact on caregiver outcomes that includes burden, experience, satisfaction, and quality of life becomes increasingly important.

The potential for admission avoidance hospital at home to increase the capacity of health systems was explored during the COVID‐19 pandemic (Aviv 2021; Nundy 2020; Oliver 2021). Further study has been done regarding 'virtual wards' and remote monitoring in this context (Thornton 2020), with a review of 27 studies finding that patient/carer training was a determining factor of success, but there was uncertainty of evidence around patient safety or deterioration (Vindrola‐Padros 2021). This is another area that requires more research, as there is a risk that remote monitoring might not be used effectively.

Summary of findings

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Summary of findings 1. Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital

Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital

Patient or population: older people requiring hospital admission

Settings: home

Intervention: admission avoidance hospital at home

Comparison: inpatient care

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

Number of participants
(studies)

Certainty of the evidence
(GRADE)

Assumed risk

Corresponding risk

Inpatient care

Admission avoidance hospital at home

Mortality

(6 months' follow‐up)

(using data from trialists and published data)

Study population

RR 0.88

(0.68 to 1.13)

1502
(5 studies)A

⊕⊕⊕⊝a
Moderate

208 per 1000

183 per 1000
(141 to 235)

Admission to hospital

(3 to 12 months' follow‐up)

(using individual patient data and published data)

Study population

RR 1.14

(0.97 to 1.34

1757
(8 studies)B

⊕⊕⊕⊝b
Moderate

407 per 1000

464 per 1000
(395 to 546)

Living in residential care at follow‐up

(6 months' follow‐up)

Study population

RR 0.53

(0.41 to 0.69)

1271
(4 studies)C

⊕⊕⊕⊝b

Moderate

124 per 1000

66 per 1000
(51 to 85)

Patient self‐reported health status

Patient‐reported health status was largely the same for participants treated in hospital at home and hospital, with some reporting higher quality of life or better health status in hospital at home.D

2006

(9 studies)

⊕⊕⊕⊝c

Moderate

Patient satisfaction

Patients allocated to hospital at home reported higher levels of satisfaction on average; a small proportion preferred hospital, or satisfaction was equal between groups.E

1812

(8 studies)

⊕⊕⊝⊝d

Low

Length of stay in hospital and hospital at home

Hospital at home reduced average length of stay in hospital, which ranged from an average of 4.1 to 18.5 days in the hospital group to 1.2 to 5.1 days in the hospital at home group.F Hospital at home length of stay ranged from an average of 3 to 20.7 days (hospital at home group only).G

Length of stay for the acute episode ranged from a mean increase of 0.7 to 9.1 daysF for the hospital at home group compared to the hospital group.

2036

(11 studies)

⊕⊕⊝⊝e

Low

Cost and resource use

Hospital at home was generally less costly than hospital care, with a range of estimates for the mean reduction per episode with different levels of certainty, from USD −215 (P = 0.38) to GBP −1981 (95% CI −2551 to −1411).H

Estimates for the difference in total health and social care costs for a variety of follow‐up durations also varied, ranging from GBP −1015.7 (95% CI −2735.5 to 644.8) to GBP −2265 (95% CI −4279 to −252).I

2148

(12 studies)

⊕⊕⊕⊝f

Moderate

*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% CI) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; RR: risk ratio

GRADE Working Group grades of evidence
High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate certainty: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.

aWe downgraded the certainty of the evidence by one level to moderate due to imprecision of the estimate.
bWe downgraded the certainty of the evidence by one level to moderate due to indirect comparisons between studies.
cWe downgraded the certainty of the evidence by one level to moderate due to risk of performance bias since patients cannot be blinded to the intervention.
dWe downgraded the certainty of the evidence by two levels to low as only 35% of the studies reported this outcome, and there is a risk of detection bias due to subjective reporting of this outcome.
eWe downgraded the certainty of the evidence by two levels to low due to imprecision and indirect comparisons between studies.
fWe downgraded the certainty of the evidence by one level to moderate since only three trials reported a full cost analysis.

ACaplan 1999; Ricauda 2008; Shepperd 2021; Tibaldi 2009; Wilson 1999.
BCaplan 1999; Davies 2000; Harris 2005; Mendoza 2009; Ricauda 2008; Shepperd 2021; Tibaldi 2009; Wilson 1999.
CRicauda 2008; Shepperd 2021; Tibaldi 2004; Tibaldi 2009.
DCorwin 2005; Echevarria 2018; Mendoza 2009; Ricauda 2008; Richards 2005; Shepperd 2021; Talcott 2011; Tibaldi 2009; Wilson 1999.
ECaplan 1999; Corwin 2005; Levine 2018; Levine 2020; Ricauda 2008; Richards 2005; Shepperd 2021; Wilson 1999.
FDavies 2000; Echevarria 2018; Shepperd 2021; Wilson 1999.
GHarris 2005; Levine 2018; Levine 2020; Mendoza 2009; Ricauda 2008; Tibaldi 2009; Wilson 1999.
HCaplan 1999; Nicholson 2001; Ricauda 2004; Ricauda 2008; Richards 2005; Shepperd 2021; Wilson 1999.
IEchevarria 2018; Mendoza 2009; Shepperd 2021.

Background

In the last 20 years, efforts to manage the steady increase in hospital admissions have included expanding out‐of‐hospital services. Examples include hospital at home services, which are designed to avoid a hospital admission or to provide early supported discharge from hospital (Leong 2021; Oliver 2021). Possible benefits of these services include releasing hospital beds; reducing the risk of adverse events associated with time in hospital (Rafter 2015); loss of independence associated with prolonged hospitalisations (Loyd 2020); receiving rehabilitation within the home environment (Kimmel 2020); and improved patient satisfaction and communication (Leff 2006).

Recent developments in remote monitoring technology, as well as pressures on health systems caused by the COVID‐19 pandemic, have motivated more countries to prioritise hospital at home services. Examples include Queensland Australia Hospital in the Home (Mackay 2023; Queensland Government 2022), Spain (Nogues 2021), and the UK, where NHS England has committed to funding the set‐up of virtual wards (otherwise known as 'hospital at home'), and Integrated Care Systems have been asked to deliver capacity equivalent to 40 to 50 virtual ward 'beds' per 100,000 population (NHS England 2021). In Scotland, health boards are required to provide hospital at home services, and some of these services have been running for many years (British Geriatrics Society 2022). In Spain, hospital at home units became popular in the 1990s, and gradually progressed to most of the country (de Sousa Vale 2020). In Australia, 'hospital in the home' activity is also growing, accounting for 3.7% of admissions from 2011 to 2017, and there are calls for more systematic monitoring and oversight (Montalto 2020).

The type of patient treated in hospital at home services varies, as does the use of technology, similar to the variation in hospitals. Some services are designed to care for specific conditions, such as chronic obstructive pulmonary disease, or to provide specific skills such as parenteral nutrition (Kumpf 2019). These services usually have close ties with acute hospitals and may be encouraged by the different structure of incentives in insurance‐based systems of health care by providing the type of service that is reimbursed.

Description of the condition

The demographic shift of a rising number of older people has increased the demand for hospital‐level care. For example, in the UK more than 40% of people admitted to hospital are over 65 years of age (NHS Digital 2019; WHO 2021 to 2030), and between 2006 and 2018 there was a 59% increase in the number of people aged over 85 who required emergency hospital admission (Steventon 2018). Healthcare decision‐makers in a number of countries are attempting to reconfigure services to deal with a year‐on‐year increase in hospital admissions, often with an inadequate evidence base (Nolte 2008; Steventon 2018). These changes have raised concerns that the pressure of delivering health care to greater numbers may be at odds with the provision of person‐centred, high‐quality care (RCP 2017). In addition to ageing, other factors such as remote monitoring are driving the adoption of hospital at home services.

Description of the intervention

The majority of admission avoidance hospital at home services provide co‐ordinated, multidisciplinary health care in the home for people who would otherwise be admitted to hospital (Arsenault‐Lapierre 2021; Leff 2009). Similar to hospitals, services are adapted to suit the patient population. People are admitted to admission avoidance hospital at home after assessment in the community by their primary care physician or in the emergency department or a medical admissions unit. Hospital at home may also provide hospital‐level care following early discharge from hospital (we have conducted a parallel systematic review of early discharge hospital at home, recently updated with no new studies identified (Gonçalves‐Bradley 2017), and a review of home‐based end‐of‐life care (Shepperd 2016b).

In single‐payer systems, hospital at home is commonly integrated with existing services, for example using telehealth that is routinely available, or existing emergency services or out‐of‐hours stand‐by services to provide publicly funded 24‐hour cover for patients if they deteriorate. This is the case in the UK, Spain, and Canada.

How the intervention might work

As well as reducing the demand for acute hospital beds, receiving hospital at home may lower the risk of functional decline from the limited mobility that can occur during an admission to hospital. This may be particularly beneficial for older people living with frailty, by providing co‐ordinated health care in the less restrictive home environment and thereby providing patients with the opportunity for continued involvement in activities of daily living (Covinsky 2003).

Why it is important to do this review

With the current policy emphasis on care closer to home (WHO 2021 to 2030), and concern about the steadily increasing demand for hospital bed‐based care (Monitor 2015; Virtual Wards 2022), we are updating this review to incorporate new randomised evidence. Along with more widespread use of admission avoidance hospital at home services, concerns have been raised about standards of care, lack of data, oversight systems, and the role of financial incentives in insurance‐based health systems that motivate providers to establish these services (Batt 2023). An up‐to‐date systematic review of the global evidence is needed to establish whether hospital at home is effective and cost‐effective when compared with bed‐based hospital care, or if there is a risk that it reduces the quality of care (Batt 2023). This is the fourth update of this review (Shepperd 2016a).

Objectives

To determine the effectiveness and cost of managing patients with admission avoidance hospital at home compared with inpatient hospital care.

Methods

Criteria for considering studies for this review

Types of studies

Randomised controlled trials.

Types of participants

This review included evaluations of admission avoidance hospital at home schemes involving people aged 18 years and over. We did not include people with long‐term care needs unless they required admission to hospital for an acute episode of care. We excluded evaluations of obstetric, paediatric, and mental health hospital at home schemes from the review as our preliminary literature searches suggested that separate reviews would be justified for each of these groups. For the purposes of this review, we defined older patients as those aged 65 years and older.

Types of interventions

Studies comparing admission avoidance hospital at home with acute hospital inpatient care. The admission avoidance hospital at home studies may have admitted patients directly from the community, thereby avoiding physical contact with the hospital, or may have admitted from the emergency room or an acute assessment unit. We used the following definition to determine whether studies should be included in the review: hospital at home is a service that can avoid the need for hospital admission by providing active treatment by healthcare professionals (including doctors) in the patient's home for a condition that would otherwise require acute hospital inpatient care, and always for a limited time period. In particular, hospital at home has to offer a specific service to patients in their home requiring healthcare professionals to take an active part in the patient's care. If hospital at home were not available, then the patient would be admitted to an acute hospital ward. We have therefore excluded the following services from this review:

  • services providing long‐term care;

  • services provided in outpatient settings or postdischarge from hospital; and

  • self‐care by the patient in their home such as self‐administration of an intravenous infusion.

Types of outcome measures

Primary outcomes

  • Mortality.

  • Admission to hospital.

Secondary outcomes

  • Living in residential care at follow‐up.

  • Patient self‐reported health status: quality of life, functional status, psychological health.

  • Satisfaction: patient, caregiver, health professionals.

  • Length of stay in hospital and hospital at home.

  • Cost and resource use.

  • Clinical outcomes.

Search methods for identification of studies

Electronic searches

For this update we searched the following databases on 24 February 2022 for references published since 2 March 2016, the last version of this review:

  • Cochrane Central Register of Controlled Trials (CENTRAL; 2022, Issue 2);

  • MEDLINE (Ovid) (MEDALL);

  • Embase (Ovid);

  • CINAHL (Cumulative Index to Nursing and Allied Health Literature) (EBSCOhost).

We sought ongoing and unpublished studies by searching ClinicalTrials.gov and the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP) and by contacting providers and researchers involved in the field.

Search strategies are comprised of natural language and controlled vocabulary terms. Search terms for this update were revised based on terminology used in studies included in previous versions of the review. We applied no limits on language. We ran searches from 2015 onwards, the date of publication of the previous version of the review. In databases where it was possible and appropriate, study design filters for randomised trials were used; in MEDLINE we used a modified version of the Cochrane Highly Sensitive Search Strategy for identifying randomised trials in MEDLINE: sensitivity‐ and precision‐maximising version (2008 revision) (Lefebvre 2021). Limits were used in Embase to remove MEDLINE records in order to avoid duplication in downloaded results. Remaining results were deduplicated in EndNote against each other and against results from searches conducted for previous versions of the review. All search strategies used in this version of the review are provided in Appendix 1. Search strategies and search methods used in previous versions of the review are published within those prior publications.

Searching other resources

We searched the following trial registries on 14 November 2022 (Appendix 1):

We checked the reference lists of articles identified electronically for evaluations of hospital at home and obtained potentially relevant articles. We checked relevant systematic reviews for other relevant studies.

Data collection and analysis

For a previous version of this review we contacted the investigators of 10 of the included trials that recruited similar populations, inviting them to contribute individual patient data (IPD) to the hospital at home admission avoidance collaborative review (Shepperd 2005), and had access to IPD for one new study for this update (Shepperd 2021).

Selection of studies

Three review authors (KE, SS, DGB) read all the abstracts in the records retrieved by the electronic searches to identify potentially eligible publications. We retrieved the full‐text papers for these publications, and two review authors (KE, SS, SI or DGB) independently assessed their eligibility. We selected studies for the review according to the prespecified inclusion criteria and resolved any disagreements by discussion. As an author of one of the studies (Shepperd 2021), SS was not involved in assessing their own study for inclusion, risk of bias, or data extraction.

Data extraction and management

Four review authors (SS, SI, DGB, KE) independently completed data extraction using a good‐practice extraction form developed by Cochrane that was modified and amended for the purposes of this review (EPOC 2015a).

Assessment of risk of bias in included studies

Four review authors (SS, SI, DGB, KE) independently assessed risk of bias in the included studies using the suggested risk of bias criteria for Cochrane Effective Practice and Organisation of Care (EPOC) reviews (EPOC 2015b):

  • random sequence generation;

  • allocation concealment;

  • baseline outcome measurement;

  • baseline characteristics;

  • blinding of participants and personnel;

  • blinding of outcome assessment;

  • incomplete outcome data;

  • selective reporting of outcomes.

Measures of treatment effect

We used IPD data and published data to conduct meta‐analyses on the outcomes of mortality, admission to hospital after discharge from hospital at home or inpatient care, and place of residence (living in residential care). We used a two‐stage approach: first we obtained or calculated the study treatment effects and their standard errors, and then subsequently combined them.

For mortality at three months, treatment effects adjusted for age and sex were estimated in a previous version of the review, based on IPD received from three trialists (Davies 2000; Harris 2005; Wilson 1999). These risk ratios were then combined using fixed‐effect inverse variance meta‐analysis (Deeks 2001). The pooled effect is expressed as the risk ratio for hospital at home compared with usual hospital care, with 95% confidence interval.

For mortality at six months, we extracted numbers of dead and alive in each group from published data from three studies, Caplan 1999; Ricauda 2008; Tibaldi 2009, and from IPD from two studies (Shepperd 2021; Wilson 1999), and combined this information as unadjusted risk ratios using a fixed‐effect model with inverse variance weights. Though studies published some adjusted risk ratios, they varied in the covariates they adjusted for, and therefore it was most straightforward to use only unadjusted estimates.

We analysed the effect of admission avoidance hospital at home on admission to hospital after discharge from hospital at home or inpatient care using IPD received from five trialists (Davies 2000; Harris 2005; Mendoza 2009; Shepperd 2021; Wilson 1999), and published data from three studies (Caplan 1999; Ricauda 2008; Tibaldi 2009), again combined using a fixed‐effect model and inverse variance weights. This outcome describes subsequent admission to inpatient hospital care after discharge (from either hospital at home or hospital) for a range of follow‐up times (3 to 12 months). We also extracted and presented data for transfer to hospital during the hospital at home episode, but as this only applies to the intervention group, we did not meta‐analyse these data.

There were insufficient IPD for living in residential care, therefore for this outcome we used available published data from three studies, Ricauda 2008; Tibaldi 2004; Tibaldi 2009, combined with the unadjusted risk ratio obtained from (Shepperd 2021), using a fixed‐effect model with inverse variance weights. The analyses in this review were carried out in Stata 16.1.

Our statistical analyses sought to include all randomised participants, using the intention‐to‐treat principle. We relied on published data when the IPD did not include the relevant outcomes.

Unit of analysis issues

The unit of allocation was the participant in all trials.

Dealing with missing data

In one data set contributing to the IPD meta‐analysis (Davies 2000), some dates were missing for known events, and so we gave the missing event a time at the midpoint between randomisation and last follow‐up, or as the midpoint between follow‐up times if these were known. For one trial where follow‐up was 90 days, we set the time to event as 45 days for three cases in the admission avoidance hospital at home arm and for one case in the control group where we knew death had occurred but we did not have a date (Davies 2000).

Assessment of heterogeneity

We quantified heterogeneity by Cochran's Q and the I2 statistic (Cochran 1954), the latter quantifying the percentage of the total variation across studies that is due to heterogeneity rather than chance (Higgins 2003); smaller percentages suggest less observed heterogeneity.

Assessment of reporting biases

If we identified an adequate number of studies (more than 10) and included these in a meta‐analysis, we explored publicaion bias using a funnel plot to visually assess funnel plot asymmetry (Higgins 2019).

Data synthesis

We used IPD when this information was available for studies that recruited similar populations (Davies 2000; Harris 2005; Mendoza 2009; Shepperd 2021; Wilson 1999). The pooled effect is expressed as the risk ratio for hospital at home compared with usual hospital care. Throughout the analyses, we took statistical significance at the two‐sided 5% level (P < 0.05), presenting data as the estimated effect with 95% confidence intervals. For this update, we conducted the analysis using Review Manager 5 (Review Manager 2020).

When combining outcome data was not possible because of differences in the measurement or reporting of outcomes, or in the case of outcomes that only applied to the intervention group, we presented data from individual studies in tables. Although planned, we did not attempt a direct comparison of costs because the trials collected data on different resources and used different methods to calculate costs.

Subgroup analysis and investigation of heterogeneity

We grouped studies by study population to reduce the amount of variation in the analysis.

Sensitivity analysis

We did not conduct a sensitivity analysis.

Summary of findings and assessment of the certainty of the evidence

We assessed our confidence in the evidence by creating a summary of findings table using the approach recommended by the GRADE Working Group, in Guyatt 2008, and specific guidance developed by EPOC (EPOC 2017), employing GRADEpro GDT software (GRADEpro GDT 2022). We included the main outcomes of mortality and admission to hospital, as well as living in residential care at follow‐up, patient satisfaction, length of stay, patient self‐reported health status, and cost and resource use. We used the five GRADE considerations (study limitations, consistency of effect, imprecision, indirectness, and risk of bias) to assess the certainty of the evidence as it relates to the main outcomes (Guyatt 2008). We used the methods and recommendations described in Chapter 14 of the Cochrane Handbook for Systematic Reviews of Interventions (Higgins 2019).

Results

Description of studies

We identified 20 trials that randomised individual participants (N = 3100), of which four were located in this update (Echevarria 2018; Levine 2018 (a pilot study); Levine 2020; Shepperd 2021) (Characteristics of included studies).

Results of the search

The updated search retrieved 2982 records from the electronic databases. We found 10 additional records from other sources, for a total of 2992 records after duplicates were removed, of which 2973 were ineligible. We obtained the full texts for the remaining 19 records, four of which fulfilled the inclusion criteria (four trials, five records), bringing the total number of trials included in the review to 20 (Figure 1). We excluded 12 studies with reasons provided (Excluded studies). We also identified two ongoing trials (NCT03156686; Pouw 2018; see Characteristics of ongoing studies).


PRISMA flow diagram.

PRISMA flow diagram.

Included studies

See Characteristics of included studies.

For a previous version of this review, we contacted the investigators of 10 of the included trials that recruited similar populations, inviting them to contribute IPD to the hospital at home admission avoidance collaborative review (Shepperd 2005). We used summaries of this information from the previous review for the three‐month mortality comparison using three studies (Davies 2000; Harris 2005; Wilson 1999), and had access to IPD for one new study (Shepperd 2021). We have summarised each study in Table 1, including details of the intervention and population in each study.

Open in table viewer
Table 1. Details of each hospital at home study

N

Length of follow‐up

Population

Conditions

Intervention

Control

Location

Mean age (SD)

24‐hour care provision

Andrei 2011

45

12 months

Patients with chronic heart failure that had deteriorated at a minimum of 1 week prior to recruitment

Chronic heart failure

Admission avoidance hospital at home; the first 48 hours of treatment was in the ED

Unknown

Romania

Unknown

Not reported

Caplan 1999

T: 51

C: 49

6 months

Patients attended casualty

Range of acute conditions

Hospital community outreach team

Hospital care

Australia

T: 73 (median)

C: 79 (median)

Not reported

Corwin 2005

T: 98

C: 96

6 days

Patients attended emergency department

Cellulitis

Hospital at home admission avoidance from the ED by GP and community care nursing staff

Hospital care

New Zealand

T: 54.6 (20.6)

C: 48.4 (19.0)

Not reported

Davies 2000

T: 100

C: 50

3 months

Patients attended A&E with chronic obstructive airways disease

COPD

Admission avoidance hospital at home by outreach specialist nurses and GP/community nurses

Hospital care

UK

Unknown

District nurses

Echevarria 2018

T: 62

C: 58

90 days

Patients over 35 years of age admitted to hospital with COPD

COPD

Once‐ or twice‐daily vists from respiratory specialist nurse under remote supervision from consultant

Hospital care

UK

T: 71.0 (9.6)

C: 68.7 (10.5)

24/7 contact with HAH team available

Harris 2005

T: 39

C: 37

90 days

Patients attended emergency department or acute assessment ward

Range of acute conditions

Hospital outreach programme; nurse‐led team provided care and rehab in patients' homes

Hospital care

New Zealand

80.0

24‐hour on‐call geriatrician

Kalra 2000

T: 153

C: 152

12 months

Patients within 72 hours of stroke onset

Moderately severe stroke

Hospital outreach admission avoidance multidisciplinary care

Hospital care, stroke unit care

UK

T: 77.7

C: 77.3 (medians)

Not reported

Levine 2018

T: 9

C: 11

30 days

Patients over 18 years of age attending emergency department

Infection, heart failure, COPD, asthma exacerbation

Hospital at home; at least 1 daily visit from general internist, 2 daily visits from nurse

Hospital care

USA

T: 65 (28)

C: 60 (29) median (IQR)

Attending physician available 24/7

Levine 2020

T: 43

C: 48

30 days

Patients over 18 years of age attending emergency department

Infection, heart failure, COPD, asthma exacerbation

Hospital at home; at least 1 daily visit from general internist, 2 daily visits from nurse

Hospital care

USA

T: 80 (19)

C: 72 (23) median (IQR)

Attending physician available 24/7

Mendoza 2009

T: 37

C: 34

1 year

Patients in A&E with acute decompensation of chronic heart failure

Heart failure

Admission avoidance hospital at home; hospital outreach model

Hospital care

Spain

79

Emergency services

Nicholson 2001

T: 13

C: 12

Duration of treatment

Patients over 45 years of age with COPD referred by GP or emergency staff

COPD

Hospital at home

Hospital care

Australia

Unknown

24‐hour telephone support by hospital staff

Ricauda 2004

T: 60

C: 60

6 months

Patients admitted to hospital within 24 hours of onset of stroke symptoms

Stroke

Hospital outreach admission avoidance

Hospital care

Italy

T: 82.5 (8.6)

C: 79.5 (6.7)

Physician and nurse available 24 hours

Ricauda 2008

T: 52

C: 52

6 months

Patients admitted to hospital for acute exacerbation of COPD

COPD

Physician‐led admission avoidance hospital outreach service

Hospital care

Italy

T: 80.1 (3.2)

C: 79.2 (3.1)

HAH staff available 24 hours

Richards 2005

T: 24

C: 25

6 weeks

Patients presented to emergency room with pneumonia

Community‐acquired pneumonia

Hospital at home: admission avoidance from emergency room

Hospital care

New Zealand

T: 50.1

C: 49.8

24‐hour emergency contact number

Shepperd 2021

T: 687

C: 345

12 months

Patients over 65 years of age referred to HAH

Range of acute conditions

Admission avoidance hospital at home; geriatrician‐led multidisciplinary team

Hospital care

UK

T: 83.3 (7.0)

C: 83.3 (6.9)

NHS telephone out‐of‐hours service, plus site‐specific arrangements for overnight care

Talcott 2011

T: 47

C: 66

Duration of acute episode

Patients who had chemotherapy

Febrile neutropenia

Admission avoidance hospital at home; commercial home care provider

Hospital care

USA

47 (median)

20 to 81 (range)

Not reported

Tibaldi 2004

T: 56

C: 53

Until discharge

Patients with advanced dementia

Range of acute conditions

Hospital at home; geriatric home hospitalisation service

Hospital care

Italy

T: 82.9 (7.9)

C: 84.1 (7.5)

Not reported

Tibaldi 2009

T: 48

C: 53

6 months

Patients presented to emergency department

Chronic heart failure

Admission avoidance hospital at home; hospital outreach

Hospital care

Italy

81

HAH staff available 24 hours

Vianello 2013

T: 26

C: 27

3 months

Patients with neuromuscular disease

Acute respiratory tract infection

Hospital at home; portable ventilator, respiratory therapist daily visits

Hospital care

Italy

T: 44.6 (20.4)

C: 46.7 (20.2)

Pulmonologist available by telephone

Wilson 1999

T: 102

C: 97

3 months

Majority elderly, referred by GP to Bed Bureau

Range of acute conditions

Admission avoidance hospital at home

Hospital care

UK

84 (median)

24‐hour care available

A&E: accident & emergency department
C: control
COPD: chronic obstructive pulmonary disease
ED: emergency department
GP: general practitioner
HAH: hospital at home
IQR: interquartile range
SD: standard deviation
T: treatment

Study populations

Four trials recruited participants with chronic obstructive pulmonary disease (COPD), with an average age range of 69.9 to 81 years (Davies 2000; Echevarria 2018; Nicholson 2001; Ricauda 2008). Two trials recruited participants recovering from a moderately severe stroke who were clinically stable, with an average age range of 77.5 to 81 years (Kalra 2000; Ricauda 2004). Seven trials recruited participants with an acute medical condition who were mainly elderly, with an average age range of 76 to 84 years (Andrei 2011; Caplan 1999; Harris 2005; Mendoza 2009; Shepperd 2021; Tibaldi 2009; Wilson 1999). Harris 2005 included two treatment groups and a control (hospital) group. One treatment group was an "admission prevention" group, and the other was an "early discharge" group. Harris provided IPD data for the admission prevention and control groups only. Two trials, one of which was the pilot for the main effectiveness trial, recruited adults attending the emergency department with a primary diagnosis of any infection, heart failure exacerbation, COPD exacerbation, or asthma exacerbation, with an average age of each 62.5 and 65 years respectively (Levine 2018; Levine 2020). There was one trial each for participants with cellulitis, average age 51.5 years (Corwin 2005), community‐acquired pneumonia, average age 50 (Richards 2005), fever and neutropenia, average age 47 (Talcott 2011), frail elderly participants with dementia, average age 83.5 (Tibaldi 2004), and neuromuscular disease, average age 45.7 years (Vianello 2013). The 20 trials were conducted in seven countries: Australia (two trials), Italy (five trials), New Zealand (three trials), Romania (one trial), Spain (one trial), the UK (five trials), and the USA (three trials).

Interventions

Details of the intervention components are described in Table 1 and Table 2. Participants were admitted to hospital at home from the emergency room (Andrei 2011; Caplan 1999; Corwin 2005; Davies 2000; Levine 2018; Levine 2020; Mendoza 2009; Nicholson 2001; Ricauda 2004; Ricauda 2008; Richards 2005; Tibaldi 2004; Tibaldi 2009; Vianello 2013), after a hospital assessment (within 24 hours) (Echevarria 2018), the community following referral by their primary care physician (Harris 2005; Kalra 2000; Wilson 1999), an outpatient department (Talcott 2011), and a hospital acute assessment unit or primary care (Shepperd 2021). For participants allocated to hospital at home, health care was provided by a hospital outreach team (Caplan 1999; Echevarria 2018; Harris 2005; Mendoza 2009; Ricauda 2004; Ricauda 2008; Talcott 2011; Tibaldi 2004; Tibaldi 2009), a mix of outreach and community staff (Davies 2000; Kalra 2000; Levine 2018; Levine 2020; Nicholson 2001; Shepperd 2021; Vianello 2013), or by the general practitioner (GP) and community nursing staff (Corwin 2005; Richards 2005; Wilson 1999). For one trial it was not clear who provided care (Andrei 2011). In two trials, the intervention was provided by Pegasus Health, an independent association of GPs (Corwin 2005; Richards 2005). One trial was a three‐group comparison of stroke unit care, inpatient stroke team, and hospital at home (Kalra 2000); we selected the inpatient stroke team as the comparison group, as this was most similar to the comparator in the other trials.

Open in table viewer
Table 2. Referral, hospital at home provision, and types of care in the included studies

Andrei 2011

Caplan 1999

Corwin 2005

Davies 2000

Echevarria 2018

Harris 2005

Kalra 2000

Levine 2018

Levine 2020

Mendoza 2009

Nicholson 2001

Ricauda 2004

Ricauda 2008

Richards 2005

Shepperd 2021

Talcott 2011

Tibaldi 2004

Tibaldi 2009

Vianello 2013

Wilson 1999

Mode of referral

Emergency room

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Community (by primary care physician)

X

X

X

Outpatient department

X

From admission < 24 hours

X

Acute assessment unit/home

X

Hospital at home provision

Hospital outreach team

X

X

X

X

X

X

X

X

X

X

X

Mix of outreach/community staff

X

X

X

X

X

GP/community nursing staff

X

X

X

Unclear

X

Types of care

Physiotherapy

X

X

X

X

X

X

X

X

X

Social worker

X

X

X

X

X

X

X

X

X

Occupational therapy

X

X

X

X

X

X

X

X

Counsellor

X

Speech therapist

X

X

Cultural link worker

X

Portable ventilator

X

GP: general practitioner

Physiotherapy care was described in 10 of the interventions (Harris 2005; Kalra 2000; Levine 2018; Levine 2020; Nicholson 2001; Ricauda 2004; Ricauda 2008; Shepperd 2021; Tibaldi 2004; Wilson 1999), and occupational therapist care in seven (Harris 2005; Kalra 2000; Levine 2018; Levine 2020; Nicholson 2001; Shepperd 2021; Wilson 1999). A social worker was part of the hospital at home team in 10 of the interventions (Davies 2000; Harris 2005; Kalra 2000; Levine 2018; Levine 2020; Ricauda 2004; Shepperd 2021; Talcott 2011; Tibaldi 2004; Wilson 1999), and a counsellor in one (Talcott 2011). Access to a speech therapist was described in three of the interventions (Kalra 2000; Ricauda 2004; Wilson 1999). In two trials, participants could access a home health aide and medical meals, if required (Levine 2018; Levine 2020). One trial described access to a cultural link worker (Wilson 1999). The intervention in one trial included the use of a portable ventilator; a respiratory therapist made daily visits for the first three days of home care, and district nurses and caregivers were trained in the application of the device and on assisting with coughing (Vianello 2013). District nurses visited daily until recovery from the respiratory tract infection; participants also had telephone access to pulmonary specialists (Vianello 2013).

Excluded studies

The main reason for exclusion was that the trial tested the feasibility of introducing technologies for ameliorating a condition at home (four trials), Duiverman 2019; Hazenberg 2014; Mascardi 2016; NCT02363413, and not hospital at home (see Characteristics of excluded studies).

Risk of bias in included studies

See Characteristics of included studies. Summaries of the risk of bias assessments for the included studies are presented in Figure 2 and Figure 3.


Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.


Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Allocation

In 15 studies concealment of allocation was adequate (Figure 2; Figure 3) (Caplan 1999; Corwin 2005; Davies 2000; Echevarria 2018; Harris 2005; Kalra 2000; Levine 2018; Levine 2020; Mendoza 2009; Ricauda 2008; Richards 2005; Shepperd 2021; Talcott 2011; Tibaldi 2009; Wilson 1999), and in 12 studies sequence generation was adequately described (Caplan 1999; Echevarria 2018; Harris 2005; Kalra 2000; Levine 2018; Levine 2020; Mendoza 2009; Ricauda 2004; Ricauda 2008; Richards 2005; Shepperd 2021; Talcott 2011).

Blinding

We assessed seven studies as having a low risk of performance bias (Davies 2000; Echevarria 2018; Harris 2005; Kalra 2000; Ricauda 2008; Shepperd 2021; Wilson 1999). Three studies were at unclear risk of bias for the measurement of objective outcomes, and nine studies were at low risk of bias for the measurement of subjective outcomes (Figure 3).

Incomplete outcome data

Most studies had a low risk of attrition bias, with seven studies having an unclear risk (Andrei 2011; Mendoza 2009; Nicholson 2001; Ricauda 2004; Richards 2005; Tibaldi 2004; Tibaldi 2009).

Selective reporting

Nine studies were at low risk of bias for selective reporting (Davies 2000; Echevarria 2018; Harris 2005; Kalra 2000; Levine 2020; Ricauda 2008; Shepperd 2021; Tibaldi 2009; Wilson 1999).

Other potential sources of bias

Other sources of bias were not assessed.

Effects of interventions

See: Summary of findings 1 Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital

See summary of findings Table 1 for the main comparison admission avoidance hospital at home versus inpatient admission for older people requiring admission to hospital.

Mortality

We combined IPD for a subset of three studies (N = 420), adjusted for age and sex, for mortality at three months' follow‐up (risk ratio (RR) 0.89, 95% confidence interval (CI) 0.55 to 1.45; P = 0.64; N = 420 participants; moderate‐certainty evidence) (Davies 2000; Harris 2005; Wilson 1999) (Analysis 1.1). We combined published data from three studies, Caplan 1999; Ricauda 2008; Tibaldi 2009, with data received from trialists of two studies, Shepperd 2021; Wilson 1999, for mortality at six months (RR 0.88, 95% CI 0.68 to 1.13; P = 0.30; N = 1502 participants; moderate‐certainty evidence) (Analysis 1.2). Results indicated that admission avoidance hospital at home probably makes little to no difference to mortality when compared with in‐hospital care.

Admission to hospital

We analysed the effect of admission avoidance hospital at home on hospital admission after discharge from hospital at home or inpatient care at 3 to 12 months' follow‐up using data received from five trialists, Davies 2000; Harris 2005; Mendoza 2009; Shepperd 2021; Wilson 1999, and published data from three studies, Caplan 1999; Ricauda 2008; Tibaldi 2009. Results indicated that admission avoidance hospital at home probably makes little to no difference to hospital admission (RR 1.14, 95% CI 0.97 to 1.34; P = 0.11; I2 = 41%; N = 1757 participants; moderate‐certainty evidence) (Analysis 1.3). Four trials reported transfer to hospital while receiving hospital at home (Analysis 1.4) (Corwin 2005; Ricauda 2008; Richards 2005; Talcott 2011).

Living in residential care at follow‐up

Admission avoidance probably reduces the likelihood of living in residential care, measured at discharge to six months' follow‐up (RR 0.53, 95% CI 0.41 to 0.69; P < 0.001; I2 = 67%; 4 trials; N = 1271 participants; moderate‐certainty evidence) (Analysis 1.5) (Ricauda 2008; Shepperd 2021; Tibaldi 2004; Tibaldi 2009).

Patient self‐reported health status

Quality of life

Nine trials assessed health status or quality of life using different measures, as described below (Analysis 1.6).

One trial that recruited people with cellulitis reported 36‐Item Short Form Health Survey (SF‐36) scores at six days' follow‐up. The difference in score from day 0 was compared between the treatment groups; each item is scored between 0 and 100, with a higher score indicating better health; a difference above 0 favours the treatment group (physical component scale mean difference (MD) −5.2, 95% CI −13.7 to 3.2; role physical scale MD 2.2, 95% CI −10.7 to 15.1; pain scale MD −3.8, 95% CI −10.6 to 3.0) (Corwin 2005).

A second trial measuring health status with the SF‐36 reported follow‐up data at one year for the physical component scale (treatment group (T): 3.6 (−0.5 to 7.7), control group (C): 2.2 (−1.9 to 6.4); P = 0.47) and the mental component scale (T: 4.0 (−0.9 to 8.9), C: 2.8 (−2.4 to 8.0); P = 0.38) (Mendoza 2009). One trial measured quality of life with the SF‐12 at six weeks' follow‐up and reported similar scores for each group on the physical component (T: 42.2, C: 45.8; P = 0.18) and mental component scale (T: 50.4, C: 51.0; P = 0.81) (Richards 2005).

Two trials assessed quality of life using the Nottingham Health Profile at six months' follow‐up. Yes/no answers are given for 38 items, which are then weighted to give a score between 0 and 100, with a higher score indicating better health. In these two trials, the change from baseline to six months was compared between treatment groups (T: +1.09 (standard deviation (SD) 2.57) N = 48, C: +0.18 (SD 1.94); P = 0.046) (Tibaldi 2009) and (T: 3.6 (SD 7.9), C: 0.8 (SD 4.5); P = 0.04) (Ricauda 2008).

One trial assessed change from baseline in quality of life when a participant had a health event using the EORTC QLQ‐C30, measuring the change before and after the episode (range 0 to 100, higher is better quality of life) (T: 0.58, C: 0.78, P = 0.05; emotional function hospital at home 3.27, hospital −6.94; P = 0.04) (Talcott 2011). One trial reported median values at three months' follow‐up for the Sickness Impact Profile (range 0 to 100, higher score is better health) (T: 24 (interquartile range (IQR) 20 to 31), C: 26 (IQR 20 to 31); MD −2, 95% CI −4 to 4; P = 0.73) and the EuroQol (utility score anchored at 0 for death and 1 for perfect health) (T: 0.64, n = 73, C: 0.63, n = 96; MD 0.01, 95% CI −0.12 to 0.09; P = 0.94) (Wilson 1999). Two trials reported mean changes for the EQ‐5D: Echevarria 2018 reported small changes from baseline to 14‐ and 90‐day follow‐up, and Shepperd 2021 reported that there was likely little or no difference between groups at six months' follow‐up.

Functional status

Ten trials reported measures of functional ability, for which higher scores indicate greater independence (see Analysis 1.7 for specific details on the scales used), described as follows.

Caplan 1999 reported scores for instrumental activities of daily living between admission and discharge (MD −0.23, P = 0.04) and the Barthel Index (high score = greater independence) (hospital at home (T): 0.37 (0.27), hospital (C): −0.04 (0.27)). A trial that recruited participants with dementia reported that fewer participants in the hospital at home group had problems with sleep (difference 34%, P < 0.001), agitation and aggression (difference 32.5%, P < 0.001), and feeding (difference 31%, P < 0.001) (Tibaldi 2004).

One trial recruiting participants who had had a stroke reported the number of participants with a favourable outcome measured by the Barthel Index (score of 15 to 20) at three months (T: 106/145 (73%), C: 106/151 (70%); RR 0.96, 95% CI 0.83 to 1.11; P = 0.58) (Kalra 2000). Ricauda 2004, which also recruited participants with a stroke, reported activities of daily living (scale 0 to 6) at six months (median (IQR), T: 4 (2 to 5), C: 4 (2 to 6); P = 0.57). Two trials recruiting participants with COPD reported follow‐up data: Ricauda 2008 reported change in activities of daily living at six months (score 0 to 6) (T: 0.12 (SD) 0.64, C: 0.08 (SD 0.73); P = 0.81), and Davies 2000 reported forced expiratory volume in 1 second (FEV1) at three months' follow‐up (T: 41.5%, 95% CI 8.2% to 74.8%; C: 41.9%, 95% CI 6.2% to 77.6%).

Two studies recruiting participants with heart failure reported little or no change in activities of daily living measured by the Barthel Index at baseline and six months' follow‐up (mean T: −1.95 (SD 9.61), C: −0.30 (SD 10.12)) (Tibaldi 2009); and at one year (T: 4.0, 95% CI −0.9 to 8.9; C: 4.7, 95% CI −2.2 to 11.5; P = 0.21), adjusted for baseline differences (Mendoza 2009). Wilson 1999, which recruited older people with a mix of conditions, assessed functional ability at three months using the Barthel Index (median (IQR) T: 16 (13 to 19), C: 16 (12 to 20)). Levine 2020 reported that patients who received their health care at home were less sedentary than those in hospital, and that reductions in functional status at 30 days after discharge were similar in both groups. Shepperd 2021 reported little or no difference between groups in activities of daily living measured by the Barthel Index at six months' follow‐up (Analysis 1.7).

Psychological health

Seven trials measured cognitive function and depression, detailed as follows (Analysis 1.8).

One trial that recruited participants recovering from a stroke reported that hospital at home may lead to lower scores on the Geriatric Depression Scale (GDS) (lower scores = fewer symptoms) (MD 7 points on a 0‐to‐30‐point scale, P < 0.001) (Ricauda 2004), and one trial reported a lower score at six months for participants who had COPD and were allocated to hospital at home (T: −3.1 (SD 4.7), C: 0.7 (SD 3.2); P < 0.001) (Ricauda 2008). One trial that recruited participants with acute chronic heart failure reported fewer depressive symptoms at six months follow‐up (measured by the GDS) for those allocated to admission avoidance hospital at home (mean change T: 1.48 (SD 1.86), C: 0.12 (SD 3.36); P = 0.02) (Tibaldi 2009). Wilson 1999 reported median (IQR) scores for the Philadelphia Geriatric Morale Scale at three months, finding little to no difference between groups (T: 37 (30 to 42), C: 37 (31 to 43); MD 0, 95% CI −4.1 to 4.1). Echevarria 2018 and Shepperd 2021, using the Hospital Anxiety and Depression Scale and the Montreal Cognitive Assessment (MoCA) questionnaire, respectively, reported little or no differences between groups.

Two trials used the Mini‐Mental State Examination (max score 30) to assess cognitive functioning at six months' follow‐up and reported little to no difference between groups (T: −0.4 (SD 4.0), C: −0.5 (SD 1.8); P = 0.88) (Ricauda 2004); and (T: 0.07 (SD 1.38), C: 0.08 (SD 1.36); P = 0.97) (Tibaldi 2009). One trial that recruited participants with a mix of conditions reported cognitive function scores: mean T: 0.43 (standard error of the mean (SEM) 0.12), C: 0.27 (SEM 0.12); and that fewer people receiving hospital at home care experienced short‐term confusion during an episode of care (MD −20.4%, 95% CI −32% to −9%) (Caplan 1999). One trial used the Confusion Assessment Method (CAM) to screen for delirium at baseline, three days, five days, and one month, and reported a difference at one month (T: 10/602 (1.7%), C: 13/297 (4.4%), RR 0.38 (0.19, 0.76); P = 0.006) (Shepperd 2021).

Satisfaction: patient, caregiver, and health professionals

Admission avoidance may increase patient satisfaction with the health care received. Participants allocated to hospital at home care reported higher levels of patient satisfaction across a range of different conditions (8 studies; 1812 participants; low‐certainty evidence). Twenty‐seven per cent (P < 0.001) more participants with cellulitis in the hospital at home group reported increased satisfaction with their location of care compared with those admitted to hospital (Corwin 2005), and 40% (P < 0.001) more participants with community‐acquired pneumonia allocated to hospital at home reported that they were happy with their care (Richards 2005). Two trials (recruiting mainly older participants with a mix of medical conditions) also reported increased levels of satisfaction for those allocated to hospital at home care (median difference of 3 on a 0‐to‐18‐point scale, P < 0.001 (Wilson 1999); and MD of 0.9 on a 4‐point scale, P < 0.001 (Caplan 1999)). However, in the latter trial, there was a low response rate for the control group: 40% compared with 78% in the hospital at home group (Caplan 1999).

Some participants (6/101; 6%) refused hospital at home care and were admitted to hospital, and a greater number of participants allocated to hospital care (23/97; 24%) were not admitted because of refusal by the participant, caregiver, or general practitioner (Wilson 1999). One trial recruiting participants with COPD reported the number of participants assessing satisfaction with care as very good or excellent (hospital at home 49/52 (94%), hospital 46/52 (88%); P = 0.83) (Analysis 1.9) (Ricauda 2008), and one trial reported that overall satisfaction scores favoured hospital at home (Shepperd 2021). Two trials (one pilot study, Levine 2018) found that patients in both groups had the same or similar median global satisfaction score, both indicating high satisfaction, though one point lower in the hospital group in Levine 2020.

One trial reported that caregivers in the hospital at home group had significantly higher levels of satisfaction compared with those in the hospital group (difference −0.8 on a 4‐point scale, P < 0.001) (Caplan 1999), although the response rate was 27% in the hospital group and 55% in the hospital at home group. A second trial assessed caregiver satisfaction through semi‐structured interviews; caregivers reported that although hospital would potentially relieve them from caring, the upheaval of visiting hospital and the accompanying anxiety was a less satisfactory option (Wilson 1999). One trial recruiting participants with COPD reported change in relatives' stress at six months (mean scores (SD) T: 4.6 (5.6), C: 2.6 (6.1); P = 0.16) (Analysis 1.10) (Ricauda 2008).

Health professionals' views

One trial evaluated general practitioners' satisfaction with the service (T: 1.17, C: 1.8, score of 1 to 4, high score = excellent, low score = poor); the response rate was poor: 63% in the hospital at home group and 37% in the control group (Analysis 1.11) (Caplan 1999).

Length of stay in hospital and hospital at home

Eleven trials reported the effect of admission avoidance hospital at home on length of hospital stay or hospital at home stay, or both, with differing results (Analysis 1.12). Four trials reported length of stay in hospital, for both the intervention and control groups (Davies 2000; Echevarria 2018; Shepperd 2021; Wilson 1999). Hospital length of stay ranged from an average of 4.1 days, Echevarria 2018, to 18.5 days, Wilson 1999, in the hospital group, and 1.2 days, Echevarria 2018, to 5.1 days, Wilson 1999, in the hospital at home group. Hospital at home length of stay ranged from an average of 3 to 20.7 days (hospital at home group only) (Harris 2005; Levine 2018; Levine 2020; Mendoza 2009; Ricauda 2008; Tibaldi 2009; Wilson 1999). One trial (Singh 2022 for Shepperd 2021) reported a reduction in hospital length of stay of just over a day at six months follow‐up for those allocated to hospital at home.

For the total length of stay in the acute episode, admission avoidance hospital at home increased the length of stay or made no difference. The increase ranged from 0.7 days, in Levine 2020, to 9.1 days, in Tibaldi 2009. In one study there was no difference in length of stay between treatment groups (Levine 2018).

Cost and resource use

Three trials reported a full evaluation of healthcare resources and costs (Echevarria 2018; Shepperd 2021; Wilson 1999); one of these trials included informal‐care costs (Shepperd 2021). Four trials reported the difference in mean cost per initial acute health episode (Caplan 1999; Nicholson 2001; Shepperd 2021; Wilson 1999); three trials reported the mean cost per patient (Ricauda 2004; Ricauda 2008; Richards 2005); and two trials reported the percentage reduction in median cost of episode and subsequent 30 days (Levine 2018; Levine 2020) (Analysis 1.13).

Admission avoidance hospital at home probably decreases healthcare costs (2148 participants, moderate‐certainty evidence) (Caplan 1999; Corwin 2005; Echevarria 2018; Levine 2018; Levine 2020; Mendoza 2009; Nicholson 2001; Ricauda 2004; Ricauda 2008; Richards 2005; Shepperd 2021; Wilson 1999), though by a range of different amounts, and there is some evidence that it decreases overall societal costs to six months' follow‐up (Shepperd 2021).

Older participants with a medical condition

One trial reported a cost minimisation analysis (Wilson 1999), finding an initial increase in the mean cost per day for hospital at home (difference GBP 99.71, P < 0.001) for all those randomised, and little or no difference in cost at three months' follow‐up (GBP −210.9, 95% CI GBP −1025 to GBP 635.47). When participants refusing their allocated place of care (T: 6/101, C: 23/97) were removed from the analysis, there was a reduction in costs for those receiving hospital at home for the initial episode of care (difference GBP −1070.53, 95% CI GBP −1843.2 to GBP −245.73) and at three months' follow‐up (difference GBP −1063.45, 95% CI GBP −2043 to GBP −162.7). The difference in mean cost per day between hospital at home and hospital care was reduced, although hospital at home care remained more costly per day (GBP 206.68 versus GBP 133.7, MD GBP 72.98, P < 0.001).

Another trial, recruiting mainly older participants with a mix of conditions, examined health service costs using average costs (Board 2000 secondary publication to Caplan 1999), and reported reduced health service costs for the intervention group (T: AUD 1764 (SD AUD 1253), C: AUD 3775 (SD AUD 2496) for an episode of care, MD per episode AUD −2011) and cost per day (T: AUD 191 (SD AUD 58), C: AUD 484 (SD AUD 67.23); MD AUD 293). The costs of the nurse co‐ordinator and hospital doctor involved were excluded from this analysis (see Analysis 1.13.1). Mendoza 2009 reported the mean (SD) cost at one‐year follow‐up (T: EUR 2541 (1334), C: EUR 4502 (2153); difference EUR 1961, P < 0.001).

Singh 2022 for Shepperd 2021 compared total health and social care costs, and total societal costs (includes the productivity loss of informal carers costed by the hour). They reported reduced health and social care costs for the intervention group from baseline to six months' follow‐up (T: GBP 15,124, C: GBP 17,390; difference GBP −2265, 95% CI GBP −4279 to GBP −252), adjusting for gender, cognitive decline, utilities, pre‐randomisation costs, and site. Total adjusted societal costs were also reduced for the intervention group at six months' follow‐up (T: GBP 19,067, C: GBP 21,907; difference GBP −2840, 95% CI GBP −5495 to GBP −185).

Participants recovering from a stroke

A trial recruiting participants recovering from a stroke compared stroke unit care, inpatient stroke team care, and hospital at home. Regarding immediate care, hospital at home care was less costly than inpatient stroke team care (MD GBP −2096, 95% CI GBP −3272 to GBP −920). The inclusion of costs of informal care, based on the minimum wage, resulted in an MD of GBP −2216 (95% CI GBP −4771 to GBP 339) (Analysis 1.13) (Patel 2004 for Kalra 2000). In another trial recruiting participants with a stroke, a small reduction in mean cost per patient was reported for those allocated to hospital at home (USD 6413.5 versus USD 6504.8) (Ricauda 2004), which translated to a lower cost per day for hospital at home of USD 112.00 (USD 163.0, SD 20.5 versus USD 275.6, SD 27.7; P < 0.001).

COPD and community‐acquired pneumonia

One trial recruiting participants with COPD reported a lower mean health service cost for participants allocated to hospital at home; hospital costs were based on an average DRG (a diagnostic‐related group categorised by resource use) cost per bed day (cost per episode MD GBP −1798, P < 0.01) (Nicholson 2001). Another trial recruiting participants with community‐acquired pneumonia, again using DRG costs for the control and actual resource use for costing the intervention, reported a reduced cost for those allocated to hospital at home (mean cost per patient T: NZD 1157.9, C: NZD 1556.28) (Richards 2005). Ricauda 2008 reported the total mean cost per patient (T: USD 1175.9, C: USD 1390.9, P = 0.38) and the total mean cost per day (T: USD 101.4 (SD 61.3), C: USD 151.7 (SD 96.4)).

Use of other health services and informal care

Davies 2000 reported an increase in referrals for social support for participants with COPD who were allocated to hospital at home. This occurred during the time they were receiving hospital at home or when the control group had been discharged from hospital (24% versus 6%, difference 18%, 95% CI 7.3% to 28.6%) (Analysis 1.13). One trial recruiting participants recovering from a stroke reported that 71% (100/140) of those allocated to hospital at home received informal care, compared with 67% (98/147) receiving care from the inpatient stroke team (Patel 2004). This translated into 979 hours (SD 1749) versus 846 hours (SD 1549) of care over a 12‐month period (Analysis 1.13). Singh 2022 for Shepperd 2021 found no significant difference in the total hours of informal care between the treatment groups up to six months' follow‐up (mean (SD) T: 594.89 (1093.63), C: 657.64 (1170.87); difference −62.76, 95% CI −224.61 to 99.09).

Clinical outcomes

One trial measured clinical complications, with fewer participants allocated to hospital at home reporting bowel complications (difference −22.5%, 95% CI −34% to −10.8%) or urinary complications (difference −14.4%, 95% CI −25.4% to −3.3%) (Caplan 1999). In a trial recruiting participants with dementia, fewer participants in the hospital at home group were prescribed antipsychotic drugs at discharge (difference −14%, 95% CI −28% to 0.3%) (Tibaldi 2004). One trial that recruited people with cellulitis reported risk of advancement of cellulitis (hazard ratio 0.98, 95% CI 0.73 to 1.32) (Corwin 2005), and one trial recruiting participants with COPD reported that more participants allocated to hospital at home were prescribed an antibiotic (difference 18%, 95% CI 1.4% to 34.6%) (Davies 2000). Talcott 2011 reported the difference in major complications during the episode of care (difference 1%, 95% CI −10% to 13%) (Analysis 1.14).

Discussion

Summary of main results

Admission avoidance hospital at home probably makes little or no difference to risk of death at six months' follow‐up and to readmission to hospital after discharge from hospital at home or inpatient care within 3 to 12 months (range of follow‐up times from the included studies), and probably reduces the likelihood of relocating from home to residential care at six months. Admission avoidance hospital at home probably results in little to no difference in patient‐reported health status, and the evidence suggests that it may increase patient satisfaction and reduce hospital length of stay; that total length of stay for hospital at home may be greater than for those allocated to hospital; and that hospital at home can be less costly than in‐hospital care (summary of findings Table 1).

Patients valued the quality of communication and personal care received in a hospital at home setting (Shepperd 2021; Wilson 1999). However, the increased satisfaction reported by patients must be balanced against the potential burden on caregivers; for example, interviews with caregivers showed that their contributions might be required to facilitate an episode of hospital at home (Makela 2020), and that this can place an additional burden on families. Comparing cost data from the different studies was limited by the different methods used to cost resources, and follow‐up times that ranged from 1 to 12 months. Three trials conducted a full economic evaluation (Jones 1999 for Wilson 1999; Singh 2022 for Shepperd 2021; and Patel 2004 for Kalra 2000), reporting that hospital at home may lead to a small reduction in health service cost, a reduction in societal costs, and can be a cost‐effective alternative to hospital admission for select groups of patients.

There was some variation in the way the admission avoidance hospital at home services operated that reflected different health systems, existing services available, and financing. Services admitted patients directly from the community (Harris 2005; Kalra 2000; Vianello 2013; Wilson 1999), outpatients (Talcott 2011), and from an accident and emergency department or medical assessment unit (Andrei 2011; Caplan 1999; Corwin 2005; Davies 2000; Echevarria 2018; Levine 2018; Levine 2020; Mendoza 2009; Nicholson 2001; Ricauda 2004; Ricauda 2008; Richards 2005; Shepperd 2021; Tibaldi 2004; Tibaldi 2009). Six trials evaluated interventions where the patient could be living alone, and five trials required a caregiver to be either living with the patient or nearby. This variation reflects the nature of complex interventions (i.e. similar to stroke units, case management, telemedicine), and we did not combine data from studies with a high level of clinical heterogeneity. There were some important common features across the different hospital at home services; these included access to a doctor, co‐ordinated care provided by a multidisciplinary team, the provision of 24‐hour cover if required, and a safe home environment being a requirement for the provision of hospital at home. Inevitably, hospital at home does not function as an isolated intervention, with the organisation of services reflecting local health systems, workforce, and available social care services. For some countries, integrating hospital at home into existing services is the most efficient way to deliver these services.

Overall completeness and applicability of evidence

The evidence indicates that admission avoidance hospital at home may provide an effective alternative to inpatient care for a select group of patients requiring hospital admission. The majority of the included trials recruited participants who were older, with an average age that ranged from 70 to over 80 years, and who had experienced a medical event that required admission to hospital. All trials but one, Andrei 2011, were conducted in high‐income countries. Eight trials excluded patients who did not have continuous family support (Caplan 1999; Mendoza 2009; Ricauda 2004; Ricauda 2008; Richards 2005; Tibaldi 2004; Tibaldi 2009; Vianello 2013). Four trials reported the number of participants recruited from ethnic minority groups; this ranged from 14% to 20% of all recruited participants (Corwin 2005; Levine 2020; Richards 2005; Talcott 2011). In one trial, hospital at home included remote monitoring for heart rate, respiratory rate, telemetry, movement, falls, and sleep via a small skin patch; cost was the primary outcome (Levine 2020), and the study was stopped early by the funder (who was also the service provider) due to the cost benefit of the intervention.

The 20 trials included in this review were conducted in Australia, Italy, New Zealand, Romania, Spain, the UK, and the USA. There is growing interest from other health systems in testing the delivery of hospital‐level care in the home. For example, in Singapore a large study that seeks to recruit 2000 participants is under way (Chong 2022; NCT04330378), and a large hospital in Pune, India expects to increase its capacity by 40% to 60% using remote patient monitoring (Mernin 2021). A large hospital in Bangkok, Thailand has also set up an @Home service, suitable for patients after surgery or acute illness, patients with chronic conditions who need regular follow‐up, and the dependent elderly (Bumrungrad 2023). Such services were also set up in the Philippines during COVID‐19 (CNN Philippines 2021). Additional large, high‐quality randomised trials will improve the certainty of the evidence and generalisability of these findings, and be a valuable guide to the development of out‐of‐hospital services to increase the capacity of health systems.

We defined admission avoidance hospital at home as: a service that can avoid the need for hospital admission by providing active treatment by healthcare professionals in the patient's home for a condition that would otherwise require acute hospital inpatient care, and always for a limited time period. All of the included studies met these criteria, and the evidence applies to services that also meet these criteria and do not provide long‐term care, outpatient care, or self‐administration of treatment. The studies varied in the amount of time that patients were in the emergency department before being admitted to hospital at home or a hospital bed; this was due to the type of illness and severity (and was not often analysed) and the ongoing demands on the health system in question. We did not apply a time threshold in the emergency room for the study to qualify as admission avoidance. If we had, it would likely have resulted in the exclusion of patients in the most pressured health systems, where evidence is arguably most needed, and have risked imposing an artificial time limit that isn't experienced on the ground, and thus limited the applicability of the evidence.

Hospital at home services inevitably place demands on those who live with the person receiving care, and family and friends who live elsewhere. Safety in the home, cultural considerations, and health problems experienced by the main carer pose further challenges (Simon 2022). An additional concern is inequality in the resources available to unpaid carers across different populations, which might increase the potential burden of receiving hospital at home (Vlachantoni 2012). A Cochrane qualitative evidence synthesis of factors that influence the implementation of hospital at home reports in detail on the barriers that limit implementation, as well as factors that support the implementation of sustainable hospital at home services (Wallis 2024). A limitation of the trials included in this review is that few reported if deaths occurred during the hospital at home admission, and if they were unexpected and related to the hospital at home intervention. The reason for this is likely the small sample size of many of the studies, and early death being a rare event. Mortality occurring during an episode of hospital at home or hospital (control group) admission might not be related to hospital at home or hospital care, and the cause would have to be assessed case by case. The cause of such adverse events was not always clearly reported in the included studies; further investigation would provide clarity on the causes of death and any links with the intervention.

Certainty of the evidence

While we assessed the overall risk of bias as low, most of the included studies were small. Shepperd 2021 was the largest trial, recruiting 1032 participants who contributed to the analysis. The meta‐analysis for the main outcome included a subgroup of five trials recruiting participants with similar conditions (older patients with a mix of medical conditions, excluding stroke) to limit heterogeneity. We downgraded the certainty of the evidence for mortality due to imprecision of the estimate: the result could be consistent with hospital at home being associated with both higher or lower risk of mortality. We downgraded for readmission to hospital and relocating to residential care, because the studies evaluated these outcomes at different lengths of follow‐up, therefore the comparison was indirect. We downgraded for patient satisfaction because only 35% of the studies evaluated this outcome, and patients/researchers were not blinded. We downgraded for patient self‐reported health status due to non‐blinding, and for length of stay because the time frame for measuring this outcome differed among studies, and the estimates covered a wide range. We downgraded for cost because only three trials did a full cost analysis (Kalra 2000; Shepperd 2021; Wilson 1999).

Potential biases in the review process

We limited publication bias by conducting an extensive search that included different databases of published articles and sources of unpublished literature; this was facilitated by a long‐established international network of people working in the field who alert us to new randomised controlled trials. Three review authors screened the search results of potentially eligible studies to reduce the risk of missing any eligible studies. To check that inclusion criteria had been applied consistently, eligibility of studies was discussed with the review team. As an author of one of the included studies (Shepperd 2021), review author SS was not involved in assessing their own study for inclusion, risk of bias assessment, or data extraction.

Agreements and disagreements with other studies or reviews

Other reviews have looked at the effect of hospital at home schemes for end‐of‐life care (Shepperd 2021), and hospital at home for early discharge (Gonçalves‐Bradley 2017). A review of a few studies of end‐of‐life care at home found that such programmes increase the chance of dying at home rather than in hospital, and patient satisfaction may be higher at one‐month follow‐up (Shepperd 2021). A review of early discharge hospital at home services found insufficient evidence for economic benefit, or improved health outcomes (Gonçalves‐Bradley 2017). The search for this review was updated in March 2020 and identified no new studies.

Systematic reviews of hospital at home services for patients with specific conditions, such as COPD and heart failure, have been published (Jeppesen 2012; Qaddoura 2015). For patients with COPD, it was reported that hospital at home reduced the number of readmissions when compared with hospital care, with uncertain evidence for mortality, health‐related quality of life, cost, and clinical outcomes (Jeppesen 2012). A review of a few studies that specifically recruited patients with heart failure found a slight increase in time to readmission, improved health‐related quality of life, and reduced index costs, with limited evidence for mortality for those allocated to hospital at home. The authors judged these studies to be of modest quality (Qaddoura 2015). A systematic review of studies of hospital at home for chronic disease identified nine studies: five trials of COPD, two of heart failure, one of stroke, and one of neuromuscular disease (Arsenault‐Lapierre 2021). We included all studies included in the Arsenault‐Lapierre 2021 review in the current review update except for Hernandez 2003, which did not compare admission avoidance hospital at home with inpatient care. In Hernandez 2003, patients who required immediate hospitalisation were excluded, and the control group was evaluated by a physician who decided on inpatient admission or discharge. The review found no significant difference in mortality for a range of follow‐up times, and a lower risk of readmission in the hospital at home group, using the longest follow‐up time for each study. In addition, similar to the current review, Arsenault‐Lapierre 2021 reported that length of treatment was longer in the hospital at home group, and relocation to residential care was less likely in the hospital at home group than in the in‐hospital group; study authors did not analyse mortality occurring during the hospital or hospital at home admission.

PRISMA flow diagram.

Figures and Tables -
Figure 1

PRISMA flow diagram.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Figures and Tables -
Figure 2

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Figures and Tables -
Figure 3

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 1: Mortality at 3 months using IPD

Figures and Tables -
Analysis 1.1

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 1: Mortality at 3 months using IPD

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 2: Mortality at 6 months' follow‐up (using published data, and IPD from Wilson and Shepperd)

Figures and Tables -
Analysis 1.2

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 2: Mortality at 6 months' follow‐up (using published data, and IPD from Wilson and Shepperd)

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 3: Readmission to hospital after discharge from hospital at home or inpatient care (3 to 12 months' follow‐up)

Figures and Tables -
Analysis 1.3

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 3: Readmission to hospital after discharge from hospital at home or inpatient care (3 to 12 months' follow‐up)

Transfer to hospital while receiving hospital at home

Study

Outcomes

Results

Corwin 2005

Transfer to hospital

T= 11/98

Ricauda 2008

Transfer to acute hospital

T= 3/52

Richards 2005

Transfer to hospital

T= 2/24

Talcott 2011

Readmission to hospital while receiving hospital at home

T= 4/47

Figures and Tables -
Analysis 1.4

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 4: Transfer to hospital while receiving hospital at home

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 5: Living in residential care at follow‐up

Figures and Tables -
Analysis 1.5

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 5: Living in residential care at follow‐up

Quality of life/health status

Study

Outcomes

Results

Notes

Admission avoidance quality of life

Corwin 2005

SF 36
Physical functioning
Role physical
Pain

SF 36
Physical functioning
Day 3
T= 37 (29.1), C= 41 (28.3)
Mean difference ‐1.9, 95% CI ‐10.7 to 6.9
Day 6
T=50.7 (33.7), C=50.9 (31.6)
Mean difference ‐5.2, 95% CI ‐13.7 to 3.2

Role physical
Day 3
T= 5.4 (18.8), C=5.5 (19.7)
Mean difference ‐1.8 95% CI ‐13.1 to 9.4
Day 6
T=21.1 (36.9), C=18.4 (36.5)
Mean difference 2.2, 95% CI ‐10.7 to 15.1

Pain
Day 3
T=57 (28.8), C=55.9 (25.4)
Mean difference ‐2.5 95% CI ‐10.1 to 5.1
Day 6
T=69.8 (26.4), C=64.8 (25.6)
Mean difference ‐3.8 95% CI ‐10.6 to 3.0

Differences calculated on absolute differences between day 0 & day 3, or day 0 & day 6.
Numbers vary due to missing data

(high score=better health)

Echevarria 2018

EQ‐5D‐5L utility 14 day

EQ‐5D‐5L utility 90 day

EQ‐5D‐5L utility (SD), mean 14 day unit change from baseline

T = 0.091 (0.249)

C = 0.055 (0.316)

EQ‐5D‐5L utility (SD), mean 90 day unit change from baseline

T = 0.003 (0.287)

C = 0.007 (0.338)

Mendoza 2009

SF 36

Physical component

Mental component

Physical component

T= 3.6 (‐0.5 to 7.7), C= 2.2 (‐1.9 to 6.4), P = 0.47

Mental component

T= 4.0 (‐0.9 to 8.9), C= 2.8 (‐2.4 to 8.0), P = 0.38

Score at 1 year (adjusted for baseline differences)

Ricauda 2008

Nottingham Health Profile

6 months, mean (SD)

T= 3.6 (7.9), C= 0.8 (4.5), P = 0.04

Changes at 6 months

Richards 2005

SF‐12 Mean physical and mental component score

Physical component

At 2 weeks
T= 38.1, C= 40.2, P = 0.45
At 6 weeks
T= 42.2, C=45.8, P = 0.18

Mental component
At 2 weeks
T=48.3, C=48.6, P = 0.91
At 6 weeks
T = 50.4, C=51.0, P = 0.81

higher score=better health

Shepperd 2021

Health status EQ‐5D‐5L utility

Barthel Index

Mean EQ‐5D‐5L utility 6 months (SD)

T = 0.451 (0.324)

C = 0.457 (0.340)

Difference in means (95% CI)

‐0.006 (‐0.053, 0.041)

Mean (SD) Barthel Index at 6 months

T = 15.8 (4.4)

C = 15.6 (4.9)

Adjusted mean difference (95% CI)

0.24 (‐0.33, 0.80)

P=0.41

Talcott 2011

Quality of life EORTC QLQ C‐30

Role Function

T= 0.58, C= 0.78, P = 0.05

Emotional Function

T= 3.27, C= ‐6.94, P = 0.04

Quality of life data were collected at the time of consent to join the study, as soon as possible after the resolution of the episode.

Data were collected for the first study episode.

Change score

Tibaldi 2009

Nottingham Health Profile

6 months, mean (SD)

T= +1.09 (2.57), C= +0.18 (1.94), P = 0.046

Wilson 1999

Sickness Impact Profile (SIP)
Euroqol

SIP, median (IQR)
T= 24 (20‐31), C= 26 (20‐31)
Difference ‐2 (95% CI ‐4 to 4), P = 0.73

Euroqol, median
T= 0.64, C= 0.63
Difference 0.01 (95% CI ‐0.12 to 0.09), P = 0.94

At 3 months follow‐up

Figures and Tables -
Analysis 1.6

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 6: Quality of life/health status

Functional status

Study

Functional ability

Results

Admission avoidance patients with a medical condition ‐ functional ability

Caplan 1999

Change in Barthel score from admission to discharge (high score=greater independence)
Instrumental activities of daily living score from admission to discharge (higher score=greater independence)

Mean (SEM)
T= 0.37 (0.27), C= ‐0.04 (0.27), NS
Mean (SEM)
T= 0.65 (0.23), C= ‐0.88 (0.26), P = 0.037

Davies 2000

St Georges' respiratory questionnaire (to a random sub‐group of 90 participants).

High score indicates poorer health related quality of life.

A minimum change in score of 4 units is clinically relevant.
Forced expiratory volume in one second (FEV1)

Baseline scores
T= 71.5 (43.4 to 99.6), C= 71.0 (43.4 to 98.6)
Mean (SD) change at 3 months
T= 0.48 (16.92) C= 3.13 (14.02)

Forced expiratory volume in 1 second (FEV1)
At 3 months:
T= 41.5% (95% CI 8.2% to 74.8%)
C= 41.9% (95% CI 6.2% to 77.6%)

Levine 2018

Activities of daily living

Instrumental activities of daily living

ADLs worse at discharge

T = 9 (0%)

C = 11 (9%)

IADLs worse at discharge

T = 9 (0%)

C = 11 (18%)

Levine 2020

Instrumental activities of daily living

Activities of daily living

IADLs worse: admission to discharge (%)

T = 11 (26) N=42

C = 14 (31) N=45

IADLs worse: admission to 30d after discharge (%)

T = 14 (37) N=42

C = 13 (34) N=38

ADLs worse: admission to discharge (%)

T = 6 (14) N=42

C = 6 (13) N=45

ADLs worse: admission to 30d after discharge (%)

T = 4 (11) N=42

C = 6 (16) N=38

Mendoza 2009

Activities of daily living

Mean score Barthel Index at 1 year (adjusted for baseline differences)

T= 4.0 (‐0.9 to 8.9)

C= 4.7 (‐2.2 to 11.5)

P = 0.21

Ricauda 2008

Change in ADL (score 0 to 6)

At 6 months, mean (SD)

T= 0.12 (0.64), C= 0.08 (0.73), P = 0.81

Shepperd 2021

Activities of daily living

Mean score Barthel Index at 6 months (SD)

T = 15.8 (4.4)

C = 15.6 (4.9)

Adjusted mean difference (95% CI)

0.24 (‐0.33, 0.80)

P=0.41

Tibaldi 2004

Behavioural disturbances

Sleeping disorders
T= 5/56 (9%), C= 23/53 (43%), MD: ‐34%, 95% CI ‐50% to ‐19%, P < 0.001

Agitation/aggressiveness
T= 5 /56 (9%), C= 22/53 (41.5%), MD ‐33% 95% CI ‐48% to ‐17%, P<0.001

Feeding disorders
T= 5 /56 (9%), C= 21/53 (40%), MD ‐31% 95% CI ‐46% to ‐16%, P < 0.001

Tibaldi 2009

Activities of daily living

Barthel Index

ADL at 6 months mean change

T= ‐1.95 (9.61) N=48, C= ‐0.30 (10.12) N=53,

Wilson 1999

Barthel Index

Barthel Index

At 3 months (Median (IQR))

T= 16 (13‐19), C= 16 (12‐20)

Barthel Index ‐ number (%) not assessed:

T= 21 (28%), C= 18 (28%)

Sickness Impact Profile:

At 3 months (Median (IQR))

T= 24 (20‐31), C= 26 (20‐31)

Sickness Impact Profile ‐ no (%) not assessed

T= 31 (41%), C= 30 (46%)

Figures and Tables -
Analysis 1.7

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 7: Functional status

Psychological health

Study

Outcomes

Results

admission avoidance ‐ cognitive function/well being

Caplan 1999

Mental status questionnaire score from admission to discharge (maximum score 10);
Number with confusion

Mean (SEM)
T= 0.43 (0.12), C= 0.27 (0.12), NS
Number with confusion
T=0/51, C=10/49

Echevarria 2018

Hospital Anxiety and Depression Scale score (HADS)

Number analysed: T=60; C=58

HADS ‐ Anxiety, 14 day (IQR), median unit change from baseline

T = ‐1.0 (‐3 to 1.75)

C = 0.5 (‐3 to 2)

HADS ‐ Anxiety, 90 day (IQR), median unit change from baseline

T = 0 (‐2 to 3)

C = 0 (‐3 to 2)

HADS ‐ Depression, 14 day (IQR), median unit change from baseline

T = ‐1.0 (‐3 to 1)

C = 0 (‐2 to 3)

HADS ‐ Depression, 90 day (IQR), median unit change from baseline

T = ‐0.5 (‐3 to 1.25)

C = 0 (‐2 to 3)

Ricauda 2004

Change in geriatric Depression Scale score (range 0‐30)
higher scores indicate depression (people recovering from a stroke)

At 6 months, median IQR

T=10 (5 to 15), C=17 (13 to 20) p<0.001

Ricauda 2008

Change in geriatric Depression Scale score (range 0‐30)
higher scores indicate depression (people with COPD)

At 6 months, mean (SD)

T= ‐3.1 (4.7), C=0.7 (3.2), P < 0.001

Shepperd 2021

Montreal Cognitive Assessment (MoCA) score (range 0‐30)

Confusion Assessment Method (CAM) (Y/N for delirium)

At 6 months (%)

T: Abnormal (score of <26): 273/407 (67.1)

Normal (score of >=26): 134/183 (32.9)

C: Abnormal: 115 (62.8)

Normal: 68 (37.2)

Adjusted RR (95% CI): 1.06 (0.93, 1.21)

P = 0.36

CAM (presence/absence of delirium) (%)

3 days

T = 25/645 (3.9)

C = 11/312 (3.5)

RR: 1.12 (0.54, 2.29)

P=0.76

5 days

T = 17/638 (2.7)

C = 9/308 (3.0)

RR: 0.93 (0.34, 2.47)

P=0.87

1 month

T = 10/602 (1.7)

C = 13/297 (4.4)

Relative risk: 0.38 (0.19, 0.76)

P=0.006

Tibaldi 2009

Mini Mental State Exam (MMSE)

Geriatric Depression Scale

At 6 months, mean change (SD)

T= +0.07 (1.38), C= +0.08 (1.36), P = 0.97

At 6 months, mean change (SD)

T= +1.48 (1.86), C= +0.12 (3.36), P = 0.02

Wilson 1999

Philadelphia Geriatric Morale Scale

At 3 months, median (IQR)
T= 37 (30‐42), C= 37 (31‐43), Difference 0, 95% CI ‐4.1 to 4.1

Figures and Tables -
Analysis 1.8

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 8: Psychological health

Patient satisfaction

Study

Outcomes

Results

Notes

Caplan 1999

Satisfaction rated on a 4 point scale: 1=excellent, 2=good, 3=fair, 4=poor.

Mean score
T= 1.1, C= 2.0, P < 0.0001

Response rates were 78% for the treatment group, and 40% for the control.

Corwin 2005

Patient satisfaction questionnaire (not described)

Overall
T= 87/91 (96%), C=87/96 (96%), P = 0.12

Satisfaction with location of care
T= 85/91 (93%), C= 59/88 (66%), P < 0.0001

Location preference
In the hospital
T= 5/91 (5%), C= 27/88 (31%)
In the community
T= 78/91 (86%), C= 31/88 (35%)
No preference
T= 8/91 (9%), C= 30/88 (34%)

P < 0.0001

Numbers for control group vary between 88 and 91 due to missing data

Proportion of participants satisfied or very satisfied

Levine 2018

Global satisfaction score;

Median global satisfaction score (IQR)

T = 10 (1)

C = 10 (2)

P=0.67

Levine 2020

Global satisfaction score; range of scores from 0 to 10, high scores equal high satisfaction

Median global satisfaction score (IQR)

T = 10 (1) N=42

C = 9 (1) N=38

Ricauda 2008

Patient satisfaction questionnaire (not described)

T= 49/52 (94%), C= 46/52 (88%), P = 0.83

Proportion of participants rating satisfaction as very good/excellent at discharge

Richards 2005

Outcome not described

T= 24/24 (100%), C= 14/24 (60%), P = 0.001

Proportion of patients very happy with care

Shepperd 2021

Patient‐reported experience questionnaire at 1 month, developed by the Picker Institute Europe (Oxford, UK)

Patient satisfaction in favour of CGA HAH

Wilson 1999

Patient satisfaction, scale 0 to 18

Median (IQR)
T= 15 (13 to 16.5), C= 12 (11 to 14), P < 0.0001

At 2 weeks, or discharge

Reported in ⛔ Wilson 2002

Figures and Tables -
Analysis 1.9

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 9: Patient satisfaction

Caregiver satisfaction

Study

Outcomes

Results

Notes

Care giver satisfaction

Caplan 1999

Carer satisfaction

Mean score
T= 1.1, C= 1.9, P < 0.0001

Satisfaction rated on a 4 point scale:

1=excellent, 2=good, 3=fair, 4=poor

Ricauda 2008

Change in

Relative’s Stress Scale Score

At 6 months, mean (SD)

T= 4.6 (5.6), C= 2.6 (6.1), P = 0.16

Figures and Tables -
Analysis 1.10

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 10: Caregiver satisfaction

Health professional satisfaction

Study

Outcomes

Results

Notes

Caplan 1999

GP satisfaction

Mean score (95% CI)
T= 1.7 (1.4 to 2.0), C= 1.8 (1.4 to 2.2), Difference: NS

Higher scores indicate higher satisfaction

Response rate:

T: 63%, C: 37%

Figures and Tables -
Analysis 1.11

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 11: Health professional satisfaction

Length of stay

Study

Results

Outcomes

Notes

Hospital and hospital at home length of stay

Davies 2000

Hospital length of stay

Median (IQR)

5 days (4 to 7)

N=100
Mean (SD)

6.72 days (4.3)

N=100

Data for the control group only

Echevarria 2018

Length of hospital stay at 90 days

Length of hospital stay (index admission)

Length of stay within HAH

Mean length of hospital stay (index admission)

T = 1.2 (2.1)

C = 4.1 (4.6)

Mean length of hospital stay at 90 days (SD)

T = 6.1 (9.7)

C = 10.3 (15.8)

Median length of stay within HAH (IQR)

T = 4 (2‐5)

C = NA

Harris 2005

Average length of stay for the index episode

until discharge from hospital

or hospital at home (days)

T= 11.33 days (SD 11.14) N=39

C= 7.83 days (7.35) N=37

Mean difference 3.5 95% CI ‐0.80 to 7.80

IPD

Levine 2018

Length of stay during acute care episode

Median length of stay during acute care episode (IQR)

T = 3 (1)

C = 3 (3)

P=0.79

Levine 2020

Length of stay during acute care episode

Mean length of stay (95% CI) (days)

T = 4.5 (3.9, 5.0)

C = 3.8 (3.3, 4.4)

Mendoza 2009

Average length of stay for the index episode (days)

T= 10.9 (SD 5.9) N=37

C= 7.9 (SD 3.0), P = 0.01 N=34

Ricauda 2008

Hospital at home and hospital length of stay (days)

Total length of stay to include hospital transfers for the hospital at home group

Total days of care (hospital plus hospital at home), mean (SD)

T= 15.5 (SD 9.5) N=52

C= 52 (SD 7.9)

Difference 4.50, 95% CI 1.14, 7.86

Richards 2005

Median number of days to discharge

T=4 (range 1‐14) N=24

C= 2 (range 0‐10) N=25

Shepperd 2021

Average length of hospital stay

Mean length of initial stay (SD) (complete cases)

T = 1.43 (4.84) N=563

C = 4.92 (7.64) N=274

Mean length of hospital length of stay at six months follow‐up

T=9.47 (18.41) N=563

C=10.58 (19.49) N=274

Tibaldi 2009

Time in the emergency department (hours)

Length of stay (days)

Time in ED, mean (SD)

T= 14.6 (3.4), C= 16.3 (3.0)

Length of treatment, mean (SD)

T= 20.7 (6.9) N=48, C= 11.6 (10.7) N=53, P = 0.001

Wilson 1999

Length of stay

Treatment N=102 Control N=97

Length of hospital stay in days, median
T= 5.1 (13.53), C= 18.5 (18.51) days, P = 0.026
Total days of care (hospital plus hospital at home), median
T= 9, C= 16 days; P = 0.031
Total days of care (hospital plus hospital at home and readmission days), mean (SD)
T= 13.33 (17.26), C= 21.42 (25.46)
Difference ‐8.09 95% CI ‐14.34 to ‐1.85

Figures and Tables -
Analysis 1.12

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 12: Length of stay

Cost and resource use

Study

Outcomes

Results

Notes

Health service resources and costs

Caplan 1999

Cost

Average cost per episode, mean (SD)
T= $1,764 ($1,253), C= $3,775 ($2,496)
Mean difference per episode $‐2011
Cost per day, mean (SD)
T= $191 ($58), C= $484 ($67.23)

Mean difference per day ‐$293

Cost data financial year 1995/1996

Corwin 2005

Days on oral antibiotics

HR 1.09 (0.82 to 1.45), P = 0.56

Echevarria 2018

Health and formal social care costs

Mean health and formal social care costs (SD)

T = 3857.8 (3199.6)

C = 4873.5 (5631.1)

Bootstrapped mean difference (95% CI)

‐1015.7 (‐2735.5, 644.8)

Levine 2018

Relative cost reduction of acute care episode

Relative cost reduction of acute care episode and 30 days after acute care episode

Relative cost reduction of acute care episode, %

52% (IQR, 28%; p = 0.05)

Relative cost reduction of acute care episode and 30 days after, %

67% (IQR, 77%; p<0.01)

% lower than for control patients

Change in median cost

Levine 2020

Relative cost reduction of acute care episode (including physician cost, Appendix Table 7 (Levine 2020)

Relative cost reduction of acute care episode and 30 days after acute care episode

With physician labour

Adjusted relative reduction in cost of acute care episode, % (95% CI)

19 (4, 31)

P=0.017

Adjusted relative reduction in cost of acute care episode and 30 days after, % (95% CI)

25 (10,38)

P<0.001

Positive means home group costs less

Relative reduction in mean cost (%)

Mendoza 2009

Cost

Mean (SD)

T= €2,541 (1,334), C= €4,502 (2,153)

Difference €1,961 P < 0.0001

Difference attributed to fewer investigations. Costs include health service costs used during follow‐up period of 1 year, excludes informal care.

Nicholson 2001

Costs

Cost per episode, mean (95% C)

T= $745 ($595 to $895),C= $2543 ($1766 to $3321)
Difference $1798, P < 0.01
Hospital at home costs
29% of the average hospital managed patient episode. Reported cost effectiveness ratio of 3:1
T + C costs
GP 10% of costs, Domiciliary allied health 21% of costs, community nursing 28% of costs = 59% of costs and hospital care 41% of costs.
If C=$895 then T= $1287 (59% of costs)

Total costs=$2182 per patient episode of care

Costs based on financial year 99/00; Used average DRG costs (Australian $), patient data for ED costs, and modelled costs for OPD clinic visits.
HAH care individual costs, included direct and non direct costs. GP costs at $91.00 per hour.

Ricauda 2004

Mean total cost (EUR converted to US$ 1 Euro=$1.3)

T= $6 413.5 per patient, C= $6 504.8 per patient
Cost per patient per day (SD)
T= $163 (20.5), C= $275.6 (27.7)
P < 0.001

Ricauda 2008

Hospital at home resources

Total costs

Nursing visits (range)

T= 14.1 (3 to 38)

Physician visits

T= 9.9 (2 to 28)

Visits to hospital for diagnosis

T= 11

Total mean cost per patient

T=$1,175.9, C= $1,390.9, P = 0.38

Total mean cost per day (SD)

T= $101.4 (61.3), C= 151.7 (96.4)

Richards 2005

Cost based on DRGs for control and actual cost for intervention

Mean cost per patient NZ$
T= $1157.9, C= $1556.28

Shepperd 2021

Health and social care costs

Mean cost of initial admission (SD)

T = 1742 (3234)

C = 3723 (5095)

Mean difference: ‐1981 (‐2551, ‐1411)

Mean Health and Social care cost (adjusted), baseline to 6 months follow up

T = 15,124

C = 17,390

Mean difference: ‐2265 (‐4279, ‐252)

Mean Societal costs (adjusted), baseline to 6 month follow up

T = 19,067

C = 21,907

Mean difference: ‐2,840 (‐5,495, ‐185)

Wilson 1999

Cost

Cost of initial episode (95% CI)
T= £2,568.9 (2,089.3 to 2,972.1)
C= £2,880.6 (2,316.1 to 3,547.8)
Difference ‐311.7, P > 0.43
Bootstrap difference using 1000 subsamples: ‐304.72 (‐1,112.4 to 447.9).
Mean cost per day (95% CI)
T= £204.6 (91.5 to 118.4)
C= £104.9 £ (181.1 to 228.22)
Mean difference £99.71 P < 0.001
Cost at 3 months (95% CI)
T= £3,671.3 (3,140.5 to 4,231.3)
C= £3,876.9 (3,224.51 to 4,559.6) Difference ‐205.7, P > 0.65
Bootstrap difference using 1000 subsamples: ‐210.9 (‐1,025 to 635.5)
COSTS EXCLUDING REFUSERS
Cost of initial episode, mean (95% CI)
T= £2,594.4 (£2,170.36 to £3,143.5)
C= £3,659.20 (£3,140.46 to £4,231.28)
Mean difference ‐£1,064.79, P < 0.01.
Bootstrap mean difference £1070.53, (95% CI‐£1843.2 to ‐£245.73)
95% CI derived using bootstrap method with 1000 subsamples
Cost per day, mean (95% CI)
T= £206.68 (£183.21 to £230.14)
C= £133.7 (£124.6 to £142.8)
Mean difference £72.98, P < 0.001
Cost at 3 months, mean (95% CI)
T= £3,697.5 (£3136.13 to £4330.66)
C= £4,761.3 (£4105.6 to £5476.6)
Mean difference ‐£1,063.8, p = 0.025
Bootstrap mean difference: £1,063.45 (95% CI ‐£2043.8 to ‐£162.7)

Cost data financial year 1995/1996
BNF for medicines 1995

Use of other social services

Davies 2000

While receiving hospital at home care, or on discharge from hospital

Referred for increased social support

T= 24/100 (24%), C= 3/50 (6%)

Difference 18%, 95% CI 7.3% to 28.6%

Echevarria 2018

Patients with a social care package post discharge

Patients with a social care package post discharge (%)

T = 7 (11.7)

C = 5 (8.6)

Informal care inputs

Kalra 2000

Informal care inputs

Received informal care:
T= 100/140 (71%), C= 98/147 (67%), Difference 4.8%, 95% CI ‐5.9% to 15.3%
Total from co residents over 12 months, hours (SD)
T= 899.18 (1760), C= 718 (6778), P = 0.75
Total hours per average week from co residents (SD)
T=46.38 (48.15), C= 33.71 (44.35), P = 0.02
Total hours from nonresidents over 12 months (SD)
T= 79.7 (283), C= 127.44 (348), P = 0.27
Total average hours per week from non residents
T= 4.79 (16.51), C= 5.03 (11.54), P = 0.88
Total hours over 12 months (SD)
T= 979 (1749), C= 846 (1549), P = 0.49

Shepperd 2021

Informal care

Mean total number of hours of unpaid help over the last 6 months (SD)

T = 594.89 (1093.63)

C = 657.64 (1170.87)

Difference in means (95% CI): ‐62.76 (‐224.61, 99.09)

Figures and Tables -
Analysis 1.13

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 13: Cost and resource use

Clinical outcomes

Study

Outcomes

Results

Clinical outcomes

Corwin 2005

No advancement of cellulitis

(indelible line drawn around peripheral margin of the cellulitis and dated)

Mean (SD) days
T= 1.5 (0.11), C= 1.49 (0.10), Mean difference 0.01 days, 95% CI ‐0.3 to 0.28
Days of no advancement of cellulites
HR 0.98, 95% CI 0.73 to 1.32, P = 0.90
Days on intravenous antibiotics
HR 0.84, 95% CI 0.63 to 1.12, P = 0.23
Days to discharge
HR 0.93, 95% CI 0.70 to 1.23, P = 0.60
Days on oral antibiotics
HR 1.09, 95% CI 0.82 to 1.45, P = 0.56

Davies 2000

Proportion of patients prescribed an antibiotic at 3 months

T= 56/100 (56%), C= 19/50 (38%), Difference 18%, 95% CI 1.4 to 34.6%

Echevarria 2018

COPD Assessment Tool (CAT) at 14 and 90 days

CAT, 14‐day (IQR)

T = ‐4.0 (‐9.5, 0)

C = ‐3.0 (‐7, 1)

CAT, 90 day (IQR)

T = ‐3.0 (‐8, 1)

C = ‐1.0 (‐6, 1)

Levine 2020

Any safety event

Median pain score

Inappropriate medication use

Urinary catheter use

Restraint use

Any safety event (%)

T = 4 (9)

C = 7 (15)

Median pain score (IQR)

T = 0 (1)

C = 0 (3)

Inappropriate medication use

T = 0 (0)

C = 5 (10)

Urinary catheter use

T = 0 (0)

C = 2 (4)

Restraint use

T = 0 (0)

C = 0 (0)

Shepperd 2021

Charlson Comorbidity Index score

Mean at 6 months (SD)

T = 6.17 (1.94)

C = 6.00 (1.93)

Adjusted mean difference (95% CI): 0.0002 (‐0.1452 to 0.1455)

Talcott 2011

Major medical complications during care in hospital at home or hospital

T= 4/47 (9%), C= 5/66 (8%), Difference 1%, 95% CI ‐10 to13%

Tibaldi 2004

Use of antipsychotic drugs

On admission
T= 26/56 (46.4%), C= 18/56 (32%), Difference 14.3%, 95% CI ‐3.7% to 31.1%
On discharge
T= 6/56 (11%), C = 13/53 (25%), Difference 14%, 95% CI ‐28% to 0.3%

Figures and Tables -
Analysis 1.14

Comparison 1: Admission avoidance hospital at home versus inpatient care, Outcome 14: Clinical outcomes

Summary of findings 1. Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital

Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital

Patient or population: older people requiring hospital admission

Settings: home

Intervention: admission avoidance hospital at home

Comparison: inpatient care

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

Number of participants
(studies)

Certainty of the evidence
(GRADE)

Assumed risk

Corresponding risk

Inpatient care

Admission avoidance hospital at home

Mortality

(6 months' follow‐up)

(using data from trialists and published data)

Study population

RR 0.88

(0.68 to 1.13)

1502
(5 studies)A

⊕⊕⊕⊝a
Moderate

208 per 1000

183 per 1000
(141 to 235)

Admission to hospital

(3 to 12 months' follow‐up)

(using individual patient data and published data)

Study population

RR 1.14

(0.97 to 1.34

1757
(8 studies)B

⊕⊕⊕⊝b
Moderate

407 per 1000

464 per 1000
(395 to 546)

Living in residential care at follow‐up

(6 months' follow‐up)

Study population

RR 0.53

(0.41 to 0.69)

1271
(4 studies)C

⊕⊕⊕⊝b

Moderate

124 per 1000

66 per 1000
(51 to 85)

Patient self‐reported health status

Patient‐reported health status was largely the same for participants treated in hospital at home and hospital, with some reporting higher quality of life or better health status in hospital at home.D

2006

(9 studies)

⊕⊕⊕⊝c

Moderate

Patient satisfaction

Patients allocated to hospital at home reported higher levels of satisfaction on average; a small proportion preferred hospital, or satisfaction was equal between groups.E

1812

(8 studies)

⊕⊕⊝⊝d

Low

Length of stay in hospital and hospital at home

Hospital at home reduced average length of stay in hospital, which ranged from an average of 4.1 to 18.5 days in the hospital group to 1.2 to 5.1 days in the hospital at home group.F Hospital at home length of stay ranged from an average of 3 to 20.7 days (hospital at home group only).G

Length of stay for the acute episode ranged from a mean increase of 0.7 to 9.1 daysF for the hospital at home group compared to the hospital group.

2036

(11 studies)

⊕⊕⊝⊝e

Low

Cost and resource use

Hospital at home was generally less costly than hospital care, with a range of estimates for the mean reduction per episode with different levels of certainty, from USD −215 (P = 0.38) to GBP −1981 (95% CI −2551 to −1411).H

Estimates for the difference in total health and social care costs for a variety of follow‐up durations also varied, ranging from GBP −1015.7 (95% CI −2735.5 to 644.8) to GBP −2265 (95% CI −4279 to −252).I

2148

(12 studies)

⊕⊕⊕⊝f

Moderate

*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% CI) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; RR: risk ratio

GRADE Working Group grades of evidence
High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate certainty: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.

aWe downgraded the certainty of the evidence by one level to moderate due to imprecision of the estimate.
bWe downgraded the certainty of the evidence by one level to moderate due to indirect comparisons between studies.
cWe downgraded the certainty of the evidence by one level to moderate due to risk of performance bias since patients cannot be blinded to the intervention.
dWe downgraded the certainty of the evidence by two levels to low as only 35% of the studies reported this outcome, and there is a risk of detection bias due to subjective reporting of this outcome.
eWe downgraded the certainty of the evidence by two levels to low due to imprecision and indirect comparisons between studies.
fWe downgraded the certainty of the evidence by one level to moderate since only three trials reported a full cost analysis.

ACaplan 1999; Ricauda 2008; Shepperd 2021; Tibaldi 2009; Wilson 1999.
BCaplan 1999; Davies 2000; Harris 2005; Mendoza 2009; Ricauda 2008; Shepperd 2021; Tibaldi 2009; Wilson 1999.
CRicauda 2008; Shepperd 2021; Tibaldi 2004; Tibaldi 2009.
DCorwin 2005; Echevarria 2018; Mendoza 2009; Ricauda 2008; Richards 2005; Shepperd 2021; Talcott 2011; Tibaldi 2009; Wilson 1999.
ECaplan 1999; Corwin 2005; Levine 2018; Levine 2020; Ricauda 2008; Richards 2005; Shepperd 2021; Wilson 1999.
FDavies 2000; Echevarria 2018; Shepperd 2021; Wilson 1999.
GHarris 2005; Levine 2018; Levine 2020; Mendoza 2009; Ricauda 2008; Tibaldi 2009; Wilson 1999.
HCaplan 1999; Nicholson 2001; Ricauda 2004; Ricauda 2008; Richards 2005; Shepperd 2021; Wilson 1999.
IEchevarria 2018; Mendoza 2009; Shepperd 2021.

Figures and Tables -
Summary of findings 1. Admission avoidance hospital at home compared with inpatient admission for older people requiring admission to hospital
Table 1. Details of each hospital at home study

N

Length of follow‐up

Population

Conditions

Intervention

Control

Location

Mean age (SD)

24‐hour care provision

Andrei 2011

45

12 months

Patients with chronic heart failure that had deteriorated at a minimum of 1 week prior to recruitment

Chronic heart failure

Admission avoidance hospital at home; the first 48 hours of treatment was in the ED

Unknown

Romania

Unknown

Not reported

Caplan 1999

T: 51

C: 49

6 months

Patients attended casualty

Range of acute conditions

Hospital community outreach team

Hospital care

Australia

T: 73 (median)

C: 79 (median)

Not reported

Corwin 2005

T: 98

C: 96

6 days

Patients attended emergency department

Cellulitis

Hospital at home admission avoidance from the ED by GP and community care nursing staff

Hospital care

New Zealand

T: 54.6 (20.6)

C: 48.4 (19.0)

Not reported

Davies 2000

T: 100

C: 50

3 months

Patients attended A&E with chronic obstructive airways disease

COPD

Admission avoidance hospital at home by outreach specialist nurses and GP/community nurses

Hospital care

UK

Unknown

District nurses

Echevarria 2018

T: 62

C: 58

90 days

Patients over 35 years of age admitted to hospital with COPD

COPD

Once‐ or twice‐daily vists from respiratory specialist nurse under remote supervision from consultant

Hospital care

UK

T: 71.0 (9.6)

C: 68.7 (10.5)

24/7 contact with HAH team available

Harris 2005

T: 39

C: 37

90 days

Patients attended emergency department or acute assessment ward

Range of acute conditions

Hospital outreach programme; nurse‐led team provided care and rehab in patients' homes

Hospital care

New Zealand

80.0

24‐hour on‐call geriatrician

Kalra 2000

T: 153

C: 152

12 months

Patients within 72 hours of stroke onset

Moderately severe stroke

Hospital outreach admission avoidance multidisciplinary care

Hospital care, stroke unit care

UK

T: 77.7

C: 77.3 (medians)

Not reported

Levine 2018

T: 9

C: 11

30 days

Patients over 18 years of age attending emergency department

Infection, heart failure, COPD, asthma exacerbation

Hospital at home; at least 1 daily visit from general internist, 2 daily visits from nurse

Hospital care

USA

T: 65 (28)

C: 60 (29) median (IQR)

Attending physician available 24/7

Levine 2020

T: 43

C: 48

30 days

Patients over 18 years of age attending emergency department

Infection, heart failure, COPD, asthma exacerbation

Hospital at home; at least 1 daily visit from general internist, 2 daily visits from nurse

Hospital care

USA

T: 80 (19)

C: 72 (23) median (IQR)

Attending physician available 24/7

Mendoza 2009

T: 37

C: 34

1 year

Patients in A&E with acute decompensation of chronic heart failure

Heart failure

Admission avoidance hospital at home; hospital outreach model

Hospital care

Spain

79

Emergency services

Nicholson 2001

T: 13

C: 12

Duration of treatment

Patients over 45 years of age with COPD referred by GP or emergency staff

COPD

Hospital at home

Hospital care

Australia

Unknown

24‐hour telephone support by hospital staff

Ricauda 2004

T: 60

C: 60

6 months

Patients admitted to hospital within 24 hours of onset of stroke symptoms

Stroke

Hospital outreach admission avoidance

Hospital care

Italy

T: 82.5 (8.6)

C: 79.5 (6.7)

Physician and nurse available 24 hours

Ricauda 2008

T: 52

C: 52

6 months

Patients admitted to hospital for acute exacerbation of COPD

COPD

Physician‐led admission avoidance hospital outreach service

Hospital care

Italy

T: 80.1 (3.2)

C: 79.2 (3.1)

HAH staff available 24 hours

Richards 2005

T: 24

C: 25

6 weeks

Patients presented to emergency room with pneumonia

Community‐acquired pneumonia

Hospital at home: admission avoidance from emergency room

Hospital care

New Zealand

T: 50.1

C: 49.8

24‐hour emergency contact number

Shepperd 2021

T: 687

C: 345

12 months

Patients over 65 years of age referred to HAH

Range of acute conditions

Admission avoidance hospital at home; geriatrician‐led multidisciplinary team

Hospital care

UK

T: 83.3 (7.0)

C: 83.3 (6.9)

NHS telephone out‐of‐hours service, plus site‐specific arrangements for overnight care

Talcott 2011

T: 47

C: 66

Duration of acute episode

Patients who had chemotherapy

Febrile neutropenia

Admission avoidance hospital at home; commercial home care provider

Hospital care

USA

47 (median)

20 to 81 (range)

Not reported

Tibaldi 2004

T: 56

C: 53

Until discharge

Patients with advanced dementia

Range of acute conditions

Hospital at home; geriatric home hospitalisation service

Hospital care

Italy

T: 82.9 (7.9)

C: 84.1 (7.5)

Not reported

Tibaldi 2009

T: 48

C: 53

6 months

Patients presented to emergency department

Chronic heart failure

Admission avoidance hospital at home; hospital outreach

Hospital care

Italy

81

HAH staff available 24 hours

Vianello 2013

T: 26

C: 27

3 months

Patients with neuromuscular disease

Acute respiratory tract infection

Hospital at home; portable ventilator, respiratory therapist daily visits

Hospital care

Italy

T: 44.6 (20.4)

C: 46.7 (20.2)

Pulmonologist available by telephone

Wilson 1999

T: 102

C: 97

3 months

Majority elderly, referred by GP to Bed Bureau

Range of acute conditions

Admission avoidance hospital at home

Hospital care

UK

84 (median)

24‐hour care available

A&E: accident & emergency department
C: control
COPD: chronic obstructive pulmonary disease
ED: emergency department
GP: general practitioner
HAH: hospital at home
IQR: interquartile range
SD: standard deviation
T: treatment

Figures and Tables -
Table 1. Details of each hospital at home study
Table 2. Referral, hospital at home provision, and types of care in the included studies

Andrei 2011

Caplan 1999

Corwin 2005

Davies 2000

Echevarria 2018

Harris 2005

Kalra 2000

Levine 2018

Levine 2020

Mendoza 2009

Nicholson 2001

Ricauda 2004

Ricauda 2008

Richards 2005

Shepperd 2021

Talcott 2011

Tibaldi 2004

Tibaldi 2009

Vianello 2013

Wilson 1999

Mode of referral

Emergency room

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Community (by primary care physician)

X

X

X

Outpatient department

X

From admission < 24 hours

X

Acute assessment unit/home

X

Hospital at home provision

Hospital outreach team

X

X

X

X

X

X

X

X

X

X

X

Mix of outreach/community staff

X

X

X

X

X

GP/community nursing staff

X

X

X

Unclear

X

Types of care

Physiotherapy

X

X

X

X

X

X

X

X

X

Social worker

X

X

X

X

X

X

X

X

X

Occupational therapy

X

X

X

X

X

X

X

X

Counsellor

X

Speech therapist

X

X

Cultural link worker

X

Portable ventilator

X

GP: general practitioner

Figures and Tables -
Table 2. Referral, hospital at home provision, and types of care in the included studies
Comparison 1. Admission avoidance hospital at home versus inpatient care

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1.1 Mortality at 3 months using IPD Show forest plot

3

420

mortality (IV, Fixed, 95% CI)

0.89 [0.55, 1.45]

1.2 Mortality at 6 months' follow‐up (using published data, and IPD from Wilson and Shepperd) Show forest plot

5

1502

Risk Ratio (IV, Fixed, 95% CI)

0.88 [0.68, 1.13]

1.3 Readmission to hospital after discharge from hospital at home or inpatient care (3 to 12 months' follow‐up) Show forest plot

8

1757

Risk Ratio (IV, Fixed, 95% CI)

1.14 [0.97, 1.34]

1.3.1 Readmission for older patients with a medical condition using IPD and published data. N=1856

8

1757

Risk Ratio (IV, Fixed, 95% CI)

1.14 [0.97, 1.34]

1.4 Transfer to hospital while receiving hospital at home Show forest plot

0

Other data

No numeric data

1.5 Living in residential care at follow‐up Show forest plot

4

1271

Risk Ratio (IV, Fixed, 95% CI)

0.53 [0.41, 0.69]

1.5.1 With a medical condition (6 months' follow‐up)

4

1271

Risk Ratio (IV, Fixed, 95% CI)

0.53 [0.41, 0.69]

1.6 Quality of life/health status Show forest plot

9

Other data

No numeric data

1.6.1 Admission avoidance quality of life

9

Other data

No numeric data

1.7 Functional status Show forest plot

10

Other data

No numeric data

1.7.2 Admission avoidance patients with a medical condition ‐ functional ability

10

Other data

No numeric data

1.8 Psychological health Show forest plot

7

Other data

No numeric data

1.8.1 admission avoidance ‐ cognitive function/well being

7

Other data

No numeric data

1.9 Patient satisfaction Show forest plot

0

Other data

No numeric data

1.10 Caregiver satisfaction Show forest plot

2

Other data

No numeric data

1.10.1 Care giver satisfaction

2

Other data

No numeric data

1.11 Health professional satisfaction Show forest plot

0

Other data

No numeric data

1.12 Length of stay Show forest plot

11

Other data

No numeric data

1.12.1 Hospital and hospital at home length of stay

11

Other data

No numeric data

1.13 Cost and resource use Show forest plot

14

Other data

No numeric data

1.13.1 Health service resources and costs

12

Other data

No numeric data

1.13.2 Use of other social services

2

Other data

No numeric data

1.13.3 Informal care inputs

2

Other data

No numeric data

1.14 Clinical outcomes Show forest plot

7

Other data

No numeric data

1.14.1 Clinical outcomes

7

Other data

No numeric data

Figures and Tables -
Comparison 1. Admission avoidance hospital at home versus inpatient care