ADHD (under age 7); 16% of offspring met criteria for ODD [mean age 11.3 (3.5) years]; 8% met criteria for CD [mean age 12.9 (2.6) years]; 31% met criteria for MDD [mean age 15.1 (3.8) years]; and 47.3% had a traumatic experience [mean age 11.5 (5.8) years]. Mean age of measured risk factors were found to occur earlier than mean age of alcohol milestones: Onset of drinking [mean age 15.8 (2.6) years]; onset of at-risk drinking [mean age 17.0 (2.5) years]; and onset of AD [mean age 18.1 (2.3) years].
