status professional occupations compared to the overall ALSPAC sample. This may limit generalizability of results from our study to other populations given the evidence that socioeconomic status is related to both alcohol use and antisocial behaviors in the ALSPAC sample (Heron et al. 2013). We might expect that the more constrained variability introduced by the attrition of more disadvantaged subjects could have weakened the associations that potentially exist at the population level.
