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 DSM-IV diagnostic information about MDD and dysthymic disorder, SAD, ADHD, ODD, and CD, whereas those completing the abbreviated SAQ only reported on ADHD. Based on prior research that has documented the value of supplemental parent reports22, 23, information from both the parent and adolescent were combined for major depression and behavior problems and classified as positive if either informant endorsed the diagnostic criteria. Definitions of all psychiatric disorders adhered to DSM-IV criteria and diagnostic hierarchy rules were applied for every disorder, with the exception of oppositional defiant disorder and substance use disorders. Psychiatric disorders derived from the modified CIDI showed good concordance with a clinical reappraisal sub-sample.19
