Consistency in report of age at first drink was examined with respect to several well-established childhood and adolescent risk factors for alcohol misuse: childhood maltreatment (Dube et al., 2006; Galaif et al., 2001; Hussey et al., 2006), conduct disorder (King et al., 2004; Kuperman et al., 2005; McGue et al., 2001), major depressive disorder (Dawson et al., 2005; Grant et al., 2004; Hasin et al., 2007; Kessler et al., 1996), regular smoking (Cardenal and Adell, 2000; Dawson, 2000; Grucza and Bierut, 2006; Johnson et al., 2000), and cannabis abuse (Degenhardt et al., 2002; Grant and Pickering, 1999; Stinson et al., 2006). Respondents who endorsed criteria at either Time 1 or Time 2 were counted as positive for a given risk factor. Childhood physical abuse or neglect (CPAN) and childhood sexual abuse (CSA) were assessed in multiple sections of the interview. Individuals were coded as positive for CPAN if, in the traumatic events section, they reported experiencing physical abuse or serious neglect before the age of 16; in the early home environment section they reported that between the ages of 6
