title: Prevalence of childhood asthma symptoms in an industrial suburb of Christchurch.
abstract: OBJECTIVE
  In response to community concern about the possible respiratory effects of emissions from a fertiliser plant, a study was carried out to determine whether the prevalence of asthma symptoms in 5-8 yr old children in an industrial suburb of Christchurch (Hornby) was the same as in the rest of Christchurch.
  
  
  METHODS
  A sample of 646 children aged 5-8 years in Hornby was compared with 1183 6-7 year old children randomly selected from schools throughout the Christchurch metropolitan area. The Christchurch sample was part of the International Study of Asthma and Allergies in Childhood (ISAAC) carried out during 1993. ISAAC questionnaires on respiratory symptoms with some additional questions about smoking and pets were answered by the caregivers of the children sampled.
  
  
  RESULTS
  Response rates were 97% in Hornby and 94% in Christchurch. Of the sample, 29% (Hornby) and 27% (Christchurch) had 'wheeze in the last 12 months' while 45% of Hornby and 44% of Christchurch children had 'ever wheezed', 28% had 'ever had asthma'. Significantly more children in Hornby (44%) were exposed to passive smoking compared to Christchurch (29%). Indoor pets were present in 73% and 67% of homes, respectively.
  
  
  CONCLUSIONS
  There was no evidence of an increase in asthma symptoms reported in children in the industrial area of Hornby.
authors.affiliation: Christchurch School of Medicine.
authors.forename: A T
authors.initials: AT
authors.lastname: Wilkie
authors.forename: R P
authors.initials: RP
authors.lastname: Ford
authors.forename: P
authors.initials: P
authors.lastname: Pattemore
authors.forename: P J
authors.initials: PJ
authors.lastname: Schluter
authors.forename: I
authors.initials: I
authors.lastname: Town
authors.forename: P
authors.initials: P
authors.lastname: Graham
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D000818:Animals; D000829:Animals, Domestic; D001249:Asthma / Q000453:epidemiology* / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005308:Fertilizers; D006801:Humans; D007221:Industry; D009520:New Zealand / Q000453:epidemiology; D015995:Prevalence; D012135:Respiratory Sounds; D013383:Suburban Population; D014028:Tobacco Smoke Pollution / Q000009:adverse effects
chemical_list: D005308:Fertilizers; D014028:Tobacco Smoke Pollution