REVIEW ARTICLES |
Imperial College London
Central and North West London Mental Health NHS Trust
Imperial College London, London, UK
Correspondence: Dr M. J. Crawford, Department of Psychological Medicine, Claybrook Centre, 37 Claybrook Road, London W6 8LN, UK. Tel: +44 (0)207 386 1233; fax: +44 (0)207 386 1216; e-mail: m.crawford{at}imperial.ac.uk
Background With almost a million people dying by suicide worldwide each year, reducing the rate of suicidal behaviour is a priority in many countries.
Aims To examine whether additional psychosocial interventions following an episode of self-harm reduce the likelihood of subsequent suicide.
Method We conducted a systematic review and meta-analysis of data from randomised controlled trials of interventions for people following self-harm. Likelihood of suicide was compared by calculating the pooled root difference in suicide rate with 95% confidence intervals.
Results We obtained suicide data from 18 studies with a total population of 3918. Eighteen suicides occurred among people offered active treatment and 19 among those offered standard care (pooled root difference in suicide rate 0.0,95% CI 0.03 to 0.03). The overall rate of suicide among people participating in trials was similar to that reported in observational studies of people who self-harm.
Conclusions Results of this meta-analysis do not provide evidence that additional psychosocial interventions following self-harm have a marked effect on the likelihood of subsequent suicide.
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