title: Core ADHD symptom improvement with atomoxetine versus methylphenidate: a direct comparison meta-analysis.
abstract: OBJECTIVE
  Previous studies comparing atomoxetine and methylphenidate to treat ADHD symptoms have been equivocal. This noninferiority meta-analysis compared core ADHD symptom response between atomoxetine and methylphenidate in children and adolescents.
  
  
  METHODS
  Selection criteria included randomized, controlled design; duration 6 weeks; and assessment of ADHD Rating Scale-IV-Parent Version: Investigator Administered and Scored (ADHDRS) scores. Six-week response rates, defined as ≥40% reduction in ADHDRS total score, were compared using a noninferiority margin of -15%.
  
  
  RESULTS
  Seven studies met inclusion criteria (N = 1,368). After 6 weeks, 53.6% (95% confidence interval [CI] 48.6%-58.4%) of atomoxetine-treated patients (n = 811) had responded compared with 54.4% (47.6%-61.1%) for methylphenidate (n = 557), with atomoxetine demonstrating noninferiority to methylphenidate (absolute difference -0.9%, 95% CI -9.2%-7.5%).
  
  
  CONCLUSIONS
  After 6 weeks of treatment atomoxetine and methylphenidate had comparable efficacy in reducing core ADHD symptoms in children and adolescents.
authors.affiliation: Discipline of Psychological Medicine, Concord Clinical School, The University of Sydney, Australia. philip.hazell@sswahs.nsw.gov.au
authors.forename: Philip L
authors.initials: PL
authors.lastname: Hazell
authors.forename: Michael R
authors.initials: MR
authors.lastname: Kohn
authors.forename: Ruth
authors.initials: R
authors.lastname: Dickson
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Walton
authors.forename: Renee E
authors.initials: RE
authors.lastname: Granger
authors.forename: Gregory W van
authors.initials: GW
authors.lastname: Wyk
mesh_terms: D000293:Adolescent; D000069445:Atomoxetine Hydrochloride; D001289:Attention Deficit Disorder with Hyperactivity / Q000188:drug therapy*; D000697:Central Nervous System Stimulants / Q000627:therapeutic use*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008774:Methylphenidate / Q000627:therapeutic use*; D011437:Propylamines / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome
chemical_list: D000697:Central Nervous System Stimulants; D011437:Propylamines; D008774:Methylphenidate; D000069445:Atomoxetine Hydrochloride