Data were collected in 2007–2009 from 1,349 household residents in Israel; details are available elsewhere (25–28). The current paper is based on secondary analyses of a study designed to investigate environmental and genetic influences on alcohol-related traits; therefore, males were oversampled because drinking among Israeli women is limited (29,30). Interviewers received extensive structured training and then administered face-to-face computer-assisted interviews, after obtaining written informed consent. All procedures were approved by relevant American and Israeli Institutional Review Boards (26–28). The overall response rate was 68.9%. Quality control included field observation, reviews of recorded interviews, and telephone verification of responses.
