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Addict Behav. 1999 Jan-Feb;24(1):149-54.

History of alcohol or drug problems, current use of alcohol or marijuana, and success in quitting smoking.

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University of California, San Francisco 94143-0939, USA.


Previous research suggests higher rates of smoking, and smoking cessation failure, in alcohol- and drug-abusing populations. The present study examined the relationship of alcohol/drug treatment history and current alcohol and marijuana consumption with success in smoking cessation treatment in a smoking clinic population. Participants were 199 smokers; 23% reported a history of alcohol/drug problems, 12.6% reported a history of drug treatment, 78.7% reported alcohol use, and 21.3% reported marijuana use during treatment. Results indicate no significant differences in abstinence rates based on history of alcohol/drug problem or treatment. Differences were found for any current alcohol use but not for marijuana use. Both alcohol use at baseline and any alcohol use during treatment predicted smoking at all follow-up points. Alcohol users had significantly lower quit rates than did participants reporting no use. Neither use of marijuana at baseline nor during treatment predicted outcome. These findings suggest that even low to moderate levels of alcohol consumption during smoking cessation may decrease treatment success.

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