Characteristics of the COGA sample (N = 6,731) are provided in Table 1. As expected, nearly 90% of the sample reported a lifetime history of alcohol use (at least once a month for at least six consecutive months). The prevalence of problem drinking (including DSM4AD and DSM5AUD) was relatively high as well. For instance, the lifetime prevalence of DSM4AD was 33.8%, while 19.0%, 11.1%, and 22.5% endorsed 2–3, 4–5, and 6 or more DSM5AUD lifetime criteria, respectively.
