Research view

Title: The worldwide prevalence of ADHD: a systematic review and metaregression analysis.
Author: Polanczyk G, de Lima MS, Horta BL, Biederman J, Rohde LA.
Abstract:
OBJECTIVE: The worldwide prevalence estimates of attention deficit hyperactivity disorder (ADHD)/hyperkinetic disorder (HD) are highly heterogeneous. Presently, the reasons for this discrepancy remain poorly understood. The purpose of this study was to de
Journal: Am J Psychiatry. 2007 Jun;164(6):942-8.