Details of the diagnostic and risk factor measures are described by Merikangas et al.17 Briefly, a modified version of the World Health Organization (WHO) Composite International Diagnostic Interview Version 3.0 (CIDI), a fully structured interview administered by trained lay interviewers to generate DSM-IV diagnoses16 was administered to adolescents. Modifications to the CIDI involved enhancing the wording and appropriateness of the instrument for assessment of adolescents. Lifetime disorders assessed in the CIDI included mood disorders and episodes (major depressive disorder [MDD] or dysthymic disorder, bipolar I or II [BPD]), anxiety disorders (panic disorder, agoraphobia, social phobia, specific phobia, generalized anxiety disorder [GAD], posttraumatic stress disorder [PTSD], separation anxiety disorder [SAD]), behavior disorders (attention deficit/hyperactivity disorder [ADHD], oppositional defiant disorder [ODD], and conduct disorder [CD]), substance use disorders (alcohol abuse/dependence, drug abuse/dependence), and eating disorders (anorexia nervosa, bulimia nervosa, and binge eating disorder). Parents (or parent surrogates) were mailed a self-administered questionnaire (SAQ) in order to collect additional information on adolescent sociodemographic characteristics, developmental background, mental and physical health, and other family- and community-level factors. Parents who completed the SAQ provided full
