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A comprehensive meta-analysis of the risk of suicide in eating disorders

Preti A, Rocchi MBL, Sisti D, Camboni MV, Miotto P. A comprehensive meta-analysis of the risk of suicide in eating disorders.

Objective:  Past meta-analyses on suicide in eating disorders included few available studies.

Method:  PubMed/Medline search for papers including sample n ≥ 40 and follow-up ≥5 years: 40 studies on anorexia nervosa (AN), 16 studies on bulimia nervosa (BN), and three studies on binge eating disorder (BED) were included.

Results:  Of 16 342 patients with AN, 245 suicides occurred over a mean follow-up of 11.1 years (suicide rate = 0.124 per 100 person-years). Standardized mortality ratio (SMR) was 31.0 (Poisson 95% CI = 21.0–44.0); a clear decrease in suicide risk over time was observed in recent decades. Of 1768 patients with BN, four suicides occurred over a mean follow-up of 7.5 years (suicide rate = 0.030 per 100 person-years): SMR was 7.5 (1.6–11.6). No suicide occurred among 246 patients with BED (mean follow-up = 5.3 years).

Conclusion:  AN and BN share many risk factors for suicide: the factors causing lower suicide rates per person-year in BN compared to AN should be investigated.

Posted in: Meta-analyses - Systematic Reviews on 11/24/2010 | Link to this post on IFP |
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