Diagnoses of externalizing and internalizing disorders at the baseline interview were also made algorithmically from the SSAGA using DSM-IV. Externalizing disorders included any of the following: ADHD, conduct disorder/antisocial personality disorder, oppositional defiant disorder, drug use disorder (including marijuana but not alcohol or tobacco). Internalizing disorders included major depression, panic disorder, obsessive-compulsive disorder, social phobia, and agoraphobia. Age of onset was determined for all comorbid disorders based on the SSAGA-IV.
