title: Sleep disturbances in 50 children with attention-deficit hyperactivity disorder.
abstract: OBJECTIVE
  This study assesses the relationship between sleep disturbances (SD) and attention-deficit and hyperactivity disorder (ADHD) to characterize clinical features and associated problems.
  
  
  METHODS
  The medical records of 50 children and adolescents ranging in age from 4 to 17 years with ADHD without the diagnosis of mental retardation or pervasive developmental disorders were reviewed.
  
  
  RESULTS
  Significant relationships were found between SD and drug therapy (p<0.01), co-morbidity (p<0.01) and greater adherence to treatment prescribed for ADHD disorders (p<0.05).
  
  
  CONCLUSIONS
  The results of this study suggest that SD are an important problem in children with ADHD and may be linked to increased symptoms.
authors.affiliation: School of Medical Sciences, University of Campinas, and Division of Clinical Neurology, Hospital das Clinicas, São Paulo, Brazil. sergionolasco@hotmail.com
authors.forename: Sergio Nolasco Hora das
authors.initials: SN
authors.lastname: Neves
authors.forename: Rubens
authors.initials: R
authors.lastname: Reimão
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications* / Q000453:epidemiology / Q000628:therapy; D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D012893:Sleep Wake Disorders / Q000150:complications* / Q000453:epidemiology / Q000628:therapy; D028761:Withholding Treatment