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Abstract Objective Inpatient suicide remains difficult to predict. This study aimed to identify individual patient predictors to help identify those at greater risk. Methods This case–control study was undertaken in an independent mental health service in Ireland. Cases were drawn from all admissions to the service between March 2004 and February 2019. Controls were matched for date of admission. Univariate and multivariate analyses were conducted. Results Thirty‐three cases of inpatient suicide were compared to 132 controls. The inpatient suicide rate was 76.2 per 100,000 admissions. The rate of inpatient suicide fell in line with national rates despite less restrictive practices being implemented in the service. Males accounted for 66% of cases. Hanging was the most common method of suicide overall and among male patients, and drowning was the most common among females. Male gender, tertiary referral, an adverse psychosocial event during admission, a period of absence without leave and expressing hopelessness were identified as independent risk factors for inpatient suicide. Substance use, involuntary detention, family history of suicide, and number of previous admissions were not significant. Conclusions While not highly sensitive, a period of absence without leave, tertiary referral and hopelessness are important predictors of inpatient suicide risk that treating teams should consider in care planning.
Hartnett et al. (Fri,) studied this question.