Descriptive statistics for the key study variables are summarized in Table 1, separately for each ancestry group. In the European ancestry sample, age at initiation of regular drinking was 18.13 years and approximately 59% of the sample met lifetime criteria for DSM-5 AUD. Approximately 14% of the sample experienced parental divorce. In the African ancestry sample, age at initiation of regular drinking was 18.88 years, and approximately 52% of the sample met lifetime criteria for DSM-5 AUD. Approximately 24% of the sample experienced parental divorce.
