title: Prevalence, recognition, and treatment of attention-deficit/hyperactivity disorder in a national sample of US children.
abstract: OBJECTIVE
  To determine the US national prevalence of attention-deficit/hyperactivity disorder (ADHD) and whether prevalence, recognition, and treatment vary by socioeconomic group.
  
  
  METHODS
  Cross-sectional survey.
  
  
  METHODS
  Nationally representative sample of the US population from 2001 to 2004.
  
  
  METHODS
  Eight- to 15-year-old children (N = 3082) in the National Health and Nutrition Examination Survey.
  
  
  METHODS
  The Diagnostic Interview Schedule for Children (caregiver module) was used to ascertain the presence of ADHD in the past year based on Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) (DSM-IV) criteria. Prior diagnosis of ADHD by a health professional and ADHD medication use were assessed by caregiver report.
  
  
  RESULTS
  Of the children, 8.7% met DSM-IV criteria for ADHD. The poorest children (lowest quintile) were more likely than the wealthiest (highest quintile) to fulfill criteria for ADHD (adjusted odds ratio [AOR], 2.3; 95% confidence interval [CI], 1.4-3.9). Among children meeting DSM-IV ADHD criteria, 47.9% had a prior diagnosis of ADHD and 32.0% were treated consistently with ADHD medications during the past year. Girls were less likely than boys to have their disorder identified (AOR, 0.3; 95% CI, 0.1-0.8), and the wealthiest children were more likely than the poorest to receive regular medication treatment (AOR, 3.4; 95% CI, 1.3-9.1).
  
  
  CONCLUSIONS
  Of US children aged 8 to 15 years, 8.7%, an estimated 2.4 million, meet DSM-IV criteria for ADHD. Less than half of children meeting DSM-IV criteria report receiving either a diagnosis of ADHD or regular medication treatment. Poor children are most likely to meet criteria for ADHD yet are least likely to receive consistent pharmacotherapy.
authors.affiliation: Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA. tanya.froehlich@cchmc.org
authors.forename: Tanya E
authors.initials: TE
authors.lastname: Froehlich
authors.forename: Bruce P
authors.initials: BP
authors.lastname: Lanphear
authors.forename: Jeffery N
authors.initials: JN
authors.lastname: Epstein
authors.forename: William J
authors.initials: WJ
authors.lastname: Barbaresi
authors.forename: Slavica K
authors.initials: SK
authors.lastname: Katusic
authors.forename: Robert S
authors.initials: RS
authors.lastname: Kahn
mesh_terms: D000293:Adolescent; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000453:epidemiology* / Q000208:ethnology / Q000628:therapy; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007182:Income; D008297:Male; D017057:Medically Uninsured / Q000706:statistics & numerical data; D008913:Minority Groups / Q000706:statistics & numerical data; D015999:Multivariate Analysis; D016017:Odds Ratio; D015995:Prevalence; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology