Dupuy 2008.

Methods	A controlled before‐after study investigating the effects of stimulants on EEG coherence in girls with ADHD
Participants	Number of participants screened: not stated Number of participants included: 9 Number of participants followed up: 9 Number of withdrawals: 0 Diagnosis of ADHD: DSM‐IV (subtype: combined or Inattentive) Age: range 7‐12 years old IQ: > 85 Sex: female Methylphenidate‐naïve: 100% Ethnicity: not stated Country: Australia Comorbidity: none Comedication: not stated Sociodemographics: not stated Inclusion criteria: ADHD according to DSM‐IV IQ > 85 Positive response to stimulant medication Exclusion criteria: History of problematic prenatal, perinatal, or neonatal periods A history of central nervous system (CNS) diseases Convulsion or convulsive disorders Evidence of a consciousness disorder Head injury with cerebral symptoms Paraxysmal headaches or tics DSM‐IV criteria for CD or ODD, an anxiety or depressive disorder, Asperger or Tourette syndrome
Interventions	Methylphenidate type: not stated Methylphenidate dosage: not stated Administration schedule: not stated Duration of intervention: 6 months Treatment compliance: not stated
Outcomes	Non‐serious adverse events: If participants experienced any problems with their medication, parent(s) were asked to contact their doctor, their medication was changed, and they were removed from the study; this did not occur with these participants
Notes	Sample calculation: not stated Any withdrawals due to adverse events: none Ethics approval: Illawarra area health/University of Wollongong Human Research Ethics Committee Funding/vested interest: not stated Authors' affiliations: Brain & Behaviour Research Institute and School of Psychology, University of Wollongong, Australia Sydney Developmental Clinic, Australia Key conclusions of the study authors: intrahemispheric and interhemispheric coherences in ADHD stimulant medicated girls. Girls had elevated frontal coherence across all frequency bands Comments from the review authors: only children who had a positive response on stimulants were included in the study. We can only use this study qualitatively and not in the analyses. Exclusion of MPH non‐responders/children who have previously experienced adverse events on MPH: no