Data were collected with an interview modified for telephone administration from the Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA/SSAGA-II) (Bucholz et al., 1994; Hesselbrock et al., 1999), which was designed to assess alcohol use disorders and related psychiatric conditions. The SSAGA was used to obtain histories of alcohol and other substance use, gather information about the early home environment, and obtain DSM-IV diagnoses.
