DOI: 10.1093/ageing/afad246.124 ISSN: 0002-0729

1901 Determinants of hospital readmissions in older people with dementia: A scoping review

B Browne, K Ali, N Tabet
  • Geriatrics and Gerontology
  • Aging
  • General Medicine



In the UK, fifty-three percent of hospitalised older people with dementia have multimorbidity, and are at an increased risk of hospital readmission within 30 days from discharge. Between 20-40% of these readmissions are preventable [1]. Current research focused on the biological causes of readmissions. However, older people with dementia have additional psychosocial factors increasing their risk of readmission. The aim of this scoping review was to identify psychosocial determinants within the context of known biological factors.


Electronic databases MEDLINE, EMBASE, CINAHL and PsychInfo were searched from inception until July 2022. Quantitative and qualitative studies in English including adults aged 65 years and over with dementia, their care workers and informal carers were considered if they investigated readmission. An inductive approach was adopted to map determinants of hospital readmission. Identified themes were described as narrative categories.


Seventeen studies including 7,194,878 participants met our inclusion criteria from a total of 4736 articles. Sixteen quantitative studies included observational cohort and randomised controlled trial designs. One American study was qualitative. Ten studies were based in the USA, and one study each from Taiwan, Australia, Canada, Sweden, Japan, Denmark, and The Netherlands. Large hospital and insurance records provided data in over 2 million patients in one American study. Identified psychosocial determinants included inadequate hospital discharge planning, limited interdisciplinary collaboration, and socioeconomic inequalities among ethnic minorities. Biological determinants included reduced mobility and accumulation of comorbidities. Use of antipsychotic medications might explain the interplay between biological and psychosocial determinants.


Poorly defined roles and responsibilities of health and social care professionals and poor communication during care transitions increase the risk of readmission in older people with dementia.


1. Godard-Sebillotte C, Strumpf E, Sourial N, et al. L. Primary care continuity and potentially avoidable hospitalization in persons with dementia. J Am Geriatr Soc. 2021;69(5):1208-20.

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