The article you requested is

Looking Beyond the Sleep Complaints: A Link to Suicidality

J Clin Psychiatry 2013;74(2):192 [letter]

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To the Editor: In a recent meta-analytic study published in the Journal, Pigeon et al reported an association between sleep disturbances and suicidal ideation and behaviors. On the basis of their analysis of 39 studies consisting of 147,753 subjects recruited from the general population and clinical settings, the authors found that sleep complaints, particularly sleep disturbances in general, insomnia, and nightmares, were individually associated with an increased relative risk for suicidal thoughts, suicide attempts, and completed suicide.

Although depression has often been linked to both sleep disruption and suicide in previous research, it was not found to moderate the effect of sleep disturbances on the suicide outcome in Pigeon and colleagues’ meta-analysis.