Initiation of antipsychotics after moving to residential aged care facilities and mortality: a national cohort study

Stephanie L. Harrison, Janet K. Sluggett, Catherine Lang, Craig Whitehead, Maria Crotty, Megan Corlis, Steve Wesselingh, Maria C. Inacio

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Background: There is a high burden of antipsychotic use in residential aged care facilities (RACFs) and there is concern regarding potential inappropriate prescribing of antipsychotics in response to mild behavioural symptoms. Antipsychotic use has been associated with a higher risk of mortality in community-dwelling older adults with dementia, but few studies have examined associations upon RACF entry. Aims: To examine associations between incident antipsychotic use and risk of mortality for people with and without diagnosed dementia in RACFs. Methods: A retrospective cohort study, employing a new-user design (individuals did not receive an antipsychotic 6 months before enrolment) of 265,820 people who accessed RACFs in Australia between 1/4/2008 and 30/6/2015 was conducted. Cox regression models were used to examine adjusted associations between antipsychotic use in the first 100 days of RACF entry and mortality. Results: In the 100 days after entering care, 29,455 residents (11.1%) were dispensed an antipsychotic. 180,956 (68.1%) residents died [38,249 (14.4%) were related to cerebrovascular causes] over a median 2.1 years (interquartile range 1.0–3.6) follow-up. Of the residents included, 119,665 (45.0%) had a diagnosis of dementia. Incident antipsychotic use was associated with higher risk of mortality in residents with dementia (adjusted hazard ratio 1.20, 95% confidence interval 1.18–1.22) and without dementia (1.28, 1.24–1.31). Conclusion: Initiation of antipsychotics after moving to RACFs is associated with a higher risk of mortality. Careful consideration of the potential benefits and harms should be given when starting a new prescription for antipsychotics for people moving to RACFs.

Original languageEnglish
Pages (from-to)95-104
Number of pages10
JournalAging Clinical and Experimental Research
Volume33
Issue number1
Early online date11 Mar 2020
DOIs
Publication statusPublished - Jan 2021
Externally publishedYes

Keywords

  • Antipsychotics
  • Dementia
  • Mortality
  • Nursing homes

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