Wave 1 of NESARC is a nationally representative face-to-face survey of 43,093 respondents, age 18 and older, conducted by NIAAA in 2001 through 2002. (A second wave will be conducted in 2004???2005.)14 The target population of NESARC???s Wave 1 is the civilian, noninstitutionalized population residing in the United States and the District of Columbia, including Alaska and Hawaii.