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Substance use and suicide

Vijayakumar, Lakshmia,c; Kumar, M Sureshb; Vijayakumar, Vinayakc

Current Opinion in Psychiatry: May 2011 - Volume 24 - Issue 3 - p 197–202
doi: 10.1097/YCO.0b013e3283459242
Addictive disorders: Edited by John B. Saunders and Linda B. Cottler

Purpose of review To address gaps identified in earlier reviews, namely, the comparative influence of substance use on attempted suicide and completed suicide; the proximal role of substance use as a trigger of suicidal behaviour; the association between substances and suicidal behaviour; suicide and substance use disorders in youth; and the influence of combinations of risk factors, including psychiatric morbidity, on suicide.

Recent findings The presence of an alcohol use disorder is confirmed as a distal risk factor for completed suicide, as well as attempted suicide. Alcohol use at the time of the suicide attempt is associated with low-risk methods. The use of other substances as a trigger of suicidal behaviour is highlighted in recent studies, but the circumstances leading to the suicidal act and the direct influence of substances in suicidal behaviour need to be explored further. Inhalant use and cocaine use are particularly associated with suicidal behaviour. Young people with multiple risk behaviours, such as substance use and risky sexual behaviours, are at high risk for suicidal behaviour. Psychiatric comorbidity with substance use escalates the risk for suicidal behaviour. Environmental interventions, such as reduction in the number of bars, may be helpful in reducing alcohol-related morbidity, including suicides.

Summary Prevention strategies for reducing suicidal behaviour among substance users need to be prioritized at the individual and the national level through effective design, policy and implementation.

aSNEHA, India

bNational Institute of Epidemiology, India

cVoluntary Health Services, Chennai, Tamil Nadu, India

Correspondence to Dr Lakshmi Vijayakumar, MBBS, DPM, PhD, FRCPsych (Hon.), 25, Ranjith Road, Kotturpuram, Chennai 600 085, Tamil Nadu, India Tel: +91 44 2447 3523; fax: +91 44 2447 3611; e-mail: dr_svk@vsnl.com, lakshmiv@unimelb.edu.au

© 2011 Lippincott Williams & Wilkins, Inc.