The goal of NESARC-III was to gather data needed to assess alcohol use & associated problems in the general population, identify subgroups of population at risk for alcohol use disorders and other alcohol-related problems, refine etiologic hypotheses, and form the basis of scientific evidence-based policies and prevention programs. The 2012–2013 NESARC-III and 2001–2002 Wave 1 NESARC cover similar issues in two time periods separated by about 10 years. Although both NESARC surveys were designed to provide nationally representative prevalence estimates for their respective periods, there were differences in the sampling design, incentive procedure, response rates, sample size, and in the instrument of diagnostic interview.
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