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What is the relationship between nicotine dependence and attempted suicide?
34 653 community-dwelling adults participating in a nationally representative survey (National Epidemiologic Survey on Alcohol and Related Conditions, NESARC). Data were collected by trained interviewers. 70.2% of participants had completed both waves of the study; those who did not complete both waves were omitted. Only data collected in the second wave of the study were analysed in the current study.
General population, USA; 2004–2005.
Further variables relating to tobacco use were also collected (age of first use, frequency and amount of use). Data on sociodemographic factors, DSM-IV mental disorders (AUDADIS-IV) and physical comorbidities were also collected, and the analyses were adjusted for these factors.
Suicide attempts, by self-report in response to a question regarding whether suicide had ever been attempted during the participant's life. Frequency and age at first and most recent attempt were also recorded.
Lifetime nicotine dependence was reported by 7557 participants (21.8%), past-year dependence by 4512 (13.0%) and prior to past-year dependence by 1842 …
Sources of funding Manitoba Health Research Council, Canadian Institutes of Health Research.
Competing interests None
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