Publication: Risk assessment and suicide by patients with schizophrenia in secondary mental healthcare: a case-control study
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Date
2016-01-01
Authors
Lopez-Morinigo, Javier-David
Ayesa-Arriola, Rosa
Torres-Romano, Beatriz
Fernandes, Andrea C.
Shetty, Hitesh
Broadbent, Matthew
Dominguez-Ballesteros, Maria-Encarnacion
Stewart, Robert
David, Anthony S.
Dutta, Rina
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Publisher
Bmj publishing group
Abstract
Objectives: To investigate the role of risk assessment in predicting suicide in patients with schizophrenia spectrum disorders (SSDs) receiving secondary mental healthcare. We postulated that risk assessment plays a limited role in predicting suicide in these patients.Design: Retrospective case-control study.Setting: Anonymised electronic mental health record data from the South London and Maudsley National Health Service (NHS) Foundation Trust (SLaM) (London, UK) linked with national mortality data.Participants: In 242 227 SLaM service users up to 31 December 2013, 635 suicides were identified. 96 (15.1%) had a SSD diagnosis. Those who died before 1 January 2007 (n=25) were removed from the analyses. Thus, 71 participants with SSD who died from suicide over the study period (cases) were compared with 355 controls.Main outcome measure: Risk of suicide in relation to risk assessment ratings.Results: Cases were younger at first contact with services (mean +/- SD 34.5 +/- 12.6 vs 39.2 +/- 15.2) and with a higher preponderance of males (OR=2.07, 95% CI 1.18 to 3.65, p=0.01) than controls. Also, suicide occurred within 10 days after last contact with services in half of cases, with the most common suicide methods being hanging (14) and jumping (13). Cases were more likely to have the following 'risk assessment' items previously recorded: suicidal history (OR=4.42, 95% CI 2.01 to 9.65, p
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Keywords
1st-episode psychosis, Brc case register, Completed suicide, Prevention trial, South london, Follow-up, Mortality, Behavior, Metaanalysis, Dimensions