We used a subset of the ALSPAC sample for which measures of alcohol use and antisocial behavior were available at 12, 13, 15, and 17 years of age. Participants’ average ages at assessment were 12.8, 13.8, 15.5, and 17.8 years for alcohol use, and 12.8, 13.9, 15.5, and 17.8 for antisocial behavior. Of 8,338 adolescents who had either alcohol use or antisocial behavior data at 1 or more measurement occasions and had nonmissing responses on sex were included in our analysis (Table 1). Our sample included 381 postnatally recruited participants (4.57%), which is similar proportion of postnatal recruitment in the overall ALSPAC sample (4.85%). Among included participants, 4,354 (52.2%) were females and 3,984 (47.8%) were males. Descriptive statistics of key demographic variables for the overall ALSPAC sample and individuals included in this study are summarized in Table 2. Compared to the overall ALSPAC sample, individuals included in this study were more likely to (i) be female, (ii) be White, and (iii) have parents with professional occupations and college degree or higher education levels. Ethical approval for the study was obtained from the ALSPAC Ethics and Law Committee and the Local Research Ethics Committees.
