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Acta Psychiatr Scand. 2015 Mar;131(3):174-84. doi: 10.1111/acps.12383. Epub 2015 Jan 5.

Meta-analysis of suicide rates among psychiatric in-patients.

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1
Mental Health Services, The Prince of Wales Hospital, Sydney, NSW, Australia.

Abstract

OBJECTIVE:

To examine factors associated with the number of psychiatric admissions per in-patient suicide and the suicide rate per 100,000 in-patient years in psychiatric hospitals.

METHOD:

Random-effects meta-analysis was used to calculate pooled estimates, and meta-regression was used to examine between-sample heterogeneity.

RESULTS:

Forty-four studies published between 1945 and 2013 reported a total of 7552 in-patient suicides. The pooled estimate of the number of admissions per suicide calculated using 39 studies reporting 150 independent samples was 676 (95% CI: 604-755). Recent studies tended to report higher numbers of admissions per suicide than earlier studies. The pooled estimate of suicide rates per 100,000 in-patient years calculated using 27 studies reporting 95 independent samples was 147 (95% CI: 138-156). Rates of suicide per 100,000 in-patient years tended to be higher in more recent samples, in samples from regions with a higher whole of population suicide rate, in samples from settings with a shorter average length of hospital stay and in studies using coronial records to define suicide.

CONCLUSION:

Rates of in-patient suicide in psychiatric hospitals vary remarkably and are disturbingly high. Further research might clarify the extent to which patient factors and the characteristics of in-patient facilities contribute to the unacceptable mortality in psychiatric hospitals.

KEYWORDS:

in-patients; psychiatric hospitals; suicide

PMID:
25559375
DOI:
10.1111/acps.12383
[Indexed for MEDLINE]
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