The DUI variable was based on the question “Have you ever been arrested for drunk driving?” which was asked during the alcohol section of the interview. Respondents also reported their age at first DUI arrest and the number of times they had been arrested for DUI. More men than women reported one (M: 14%, F: 5%), two (M: 6%, F: 2%), and three or more DUIs (M: 8%, F: 1%). Of the 1248 individuals for whom we had DUI information from both stages, 92% were consistent in their DUI reports, 6% reported a first DUI between stages, and 2% reported a DUI at Stage 1 but not at Stage 2 (kappa=.82, 95% CI=.78–.85). Because this was a cross-sectional analysis based on lifetime reports, we did not correct for the 2% who were inconsistent in their reports.
