The Relation between Nicotine Dependence and Suicide Attempts in the General Population

Daniel Yaworski · Jennifer A. Robinson · Jitender Sareen · James M. Bolton

53 citations0/0 files storedThe Canadian Journal of Psychiatry

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Suicide and Self-Harm Studies Substance Abuse Treatment and Outcomes Smoking Behavior and Cessation

Abstract

OBJECTIVE: There has been much debate as to whether nicotine is a risk factor for suicidal behaviour. This study sought to examine the relation between nicotine dependence and suicide attempts in a population-based sample of adults. METHOD: Our study used the National Epidemiologic Survey on Alcohol and Related Conditions Wave 2 (NESARC; 2004-2005), a large (n = 34,653) nationally representative survey of community-dwelling American adults. Multiple logistic regression analyses examined the relation between suicide attempts and Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, nicotine dependence, compared with nonusers of nicotine. Associations between suicide attempts and other measures of nicotine use (nicotine cessation, age of first use, frequency, and amount of use) were also examined. RESULTS: Lifetime (AOR 1.78; 95% CI 1.48 to 2.15) and past-year nicotine dependence (AOR 1.77; 95% CI 1.02 to 3.06) were independently associated with lifetime and past-year suicide attempts, respectively, even after adjusting for sociodemographic factors, other mental disorders, and physical disease. Nicotine dependence cessation was associated with a decreased likelihood of suicide attempt compared with people currently dependent on nicotine (AOR 0.15; 95% CI 0.05 to 0.43). Greater amount of daily cigarette use was associated with suicide attempts in the model that adjusted for sociodemographic factors and other mental disorders (AOR 1.53; 95% CI 1.05 to 2.24). CONCLUSIONS: Nicotine dependence is associated with suicide attempts, independently of comorbid mental disorders and physical disease. The association attenuates when a person ceases using nicotine, suggesting a state, rather than trait, effect. These findings provide evidence for additional concern regarding the deleterious health effects of tobacco.

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References

2003Neurobiology of suicidal behaviour 2005Trends in Suicide Ideation, Plans, Gestures, and Attempts in the United States, 1990-1992 to 2001-2003 2008Sociodemographic and psychopathologic predictors of first incidence of DSM-IV substance use, mood and anxiety disorders: results from the Wave 2 National Epidemiologic Survey on Alcohol and Related Conditions 2004Immigration and Lifetime Prevalence of DSM-IV PsychiatricDisorders Among Mexican Americans and Non-Hispanic Whites in the United States 1994Suicide as an Outcome for Medical Disorders 2010Chronic Physical Conditions and Their Association With First Onset of Suicidal Behavior in the World Mental Health Surveys 2005Smoking and the Risk of Suicidal Behavior 2003Smoking at age 18–20 and suicide during 26 years of follow-up—how can the association be explained?

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