The diagnostic interview used in the NESARC was the Alcohol Use Disorder and Associated Disabilities Interview Schedule-DSM-IV Version (AUDADIS-IV, Grant et al., 2003a). The AUDADIS-IV is a state-of-the-art structured diagnostic interview schedule designed for use by lay interviewers. The KECA study administered the Korean version of Composite International Diagnostic Interview 2.1(K-CIDI 2.1) to each subject (Cho et al., 2002). The K-CIDI 2.1 (World Health Organization, 1990) is a fully structured diagnostic interview designed to detect Diagnostic and Statistical Manual of Mental Disorders – Fourth Edition (DSM-IV; American Psychiatric Association, 1994) Axis I disorders. The K-CIDI 2.1 was validated according to guidelines published by the World Health Organization (1997).
