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Roberts, Robert E.; Roberts, Catherine R.; Chan, Wenyaw – Journal of Child Psychology and Psychiatry, 2009
Background: We have few data on incidence of psychiatric disorders among adolescents. This study examined first incidence of disorders among adolescents and baseline factors which increased or decreased risk of new onset cases a year later. Methods: Data were analyzed from Teen Health 2000 (TH2K), a probability sample of 4,175 youths 11-17 and…
Descriptors: Substance Abuse, Incidence, Attention Deficit Hyperactivity Disorder, Behavior Disorders