title: Childhood asthma diagnosis and use of asthma medication.
abstract: OBJECTIVE
  To determine the burden of asthma in children.
  
  
  METHODS
  A cross sectional, randomised, computer assisted telephone survey of a community based sample of 2020 children aged 5-14 years in western Sydney (New South Wales) over a 20 day period from June 2000 to July 2000.
  
  
  RESULTS
  Main outcome measures were carer reported history of asthma diagnosis, hospital presentation/admission for asthma, recent use of anti-asthma medications, and recent respiratory symptoms. Diagnosed asthma was reported in 31% (of whom 42% were diagnosed aged 2 years or under) and asthma medications used in the previous year by 21% of children. Factors significantly associated with a reported asthma diagnosis included: male gender (OR: 1.51), birth in Australia (OR: 1.64), living in an English speaking household (OR: 1.47), Aboriginality (OR: 2.32), possession of a health care card (OR: 1.28), previous pneumonia (OR: 2.4) or pertussis (OR: 2.0), and a recent episode of croup (OR: 1.9). Exposure to tobacco smoke and immunisation status were not significant.
  
  
  CONCLUSIONS
  We confirm a high prevalence of asthma and medication use for asthma. The high proportion of children diagnosed asthmatic at 2 years or under (when asthma cannot be diagnosed reliably) suggests overdiagnosis of asthma may contribute to the apparent high prevalence.
authors.affiliation: Westmead Hospital, New South Wales.
authors.forename: M
authors.initials: M
authors.lastname: Cagney
authors.forename: C R
authors.initials: CR
authors.lastname: MacIntyre
authors.forename: P B
authors.initials: PB
authors.lastname: McIntyre
authors.forename: J
authors.initials: J
authors.lastname: Peat
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D017668:Age of Onset; D018927:Anti-Asthmatic Agents / Q000627:therapeutic use*; D001249:Asthma / Q000175:diagnosis / Q000188:drug therapy* / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007348:Insurance, Health / Q000706:statistics & numerical data; D016015:Logistic Models; D008297:Male; D009517:New South Wales / Q000453:epidemiology; D017678:Sex Distribution; D012959:Socioeconomic Factors
chemical_list: D018927:Anti-Asthmatic Agents