Review: extended stimulant medication is effective in children with attention deficit hyperactivity disorder Schachar R, Jadad AR, Gauld M, et al. Attention-deficit hyperactivity disorder: critical appraisal of extended treatment studies. Can J Psychiatry 2002;47:337-48. QUESTION: In children with attention deficit hyperactivity disorder (ADHD), are pharmacological and non-pharmacological treatments of ≥12 weeks duration effective? Data sources Studies were identified by searching Medline,

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... L, HealthSTAR, PsycINFO, EMBASE/Excerpta Medica, the Cochrane Library, reference lists, and personal files. Study selection Randomised controlled trials (RCTs) evaluating treatment for ≥ 12 weeks in children with ADHD were selected if they were full reports published in any language in peer reviewed journals.