The 2001–2002 NESARC is based on face-to-face interviews with a nationally representative sample of the adult population (18 years and older) of the United States and was conducted by the National Institute on Alcohol Abuse and Alcoholism. The target population of the NESARC was the civilian noninstitutionalized population residing in the United States, including Alaska and Hawaii, and persons living in households and group quarters. The final sample (n=43,093) was weighted to adjust for oversampling and nonresponse at the individual and household levels. The overall survey response rate was 81.0%, and details of this survey have been described elsewhere (Grant et al., 2003b).
