Nicotine dependence in the United States: prevalence, trends, and smoking persistence.


BACKGROUND The prevalence of smoking in the United States has been closely monitored. However, little is known about the epidemiology of nicotine dependence. We studied DSM-III-R nicotine dependence in the United States, trends across cohorts, and the role of nicotine dependence in smoking persistence. METHODS The Tobacco Supplement to the National… (More)


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