title: Home environmental tobacco smoke exposure in Canadian children.
abstract: BACKGROUND
  Children living with a smoker experience increased environmental tobacco smoke (ETS) exposure, even when the smoker refrains from smoking inside the house, compared to children not living with a smoker. Given the risks of ETS in children, it was hypothesized that households with children are less likely than those without children to experience home ETS exposure.
  
  
  METHODS
  Cross-sectional analysis of the Canadian Community Health Survey 2009-2010 for the association between children aged <12 years in the household and home ETS exposure, using logistic regression and considering household education and income as confounders or effect modifiers. A subgroup analysis was conducted comparing younger child households (at least one child aged <6 years) to older child households (only children aged 6-11 years).
  
  
  RESULTS
  Of 66 631 households included, home ETS exposure occurred in 25% of households without children and 22% of households with children. Households with children were less likely than those without children to experience ETS exposure (OR 0.83, 95%CI 0.80-0.87). Effect modification by education and income was observed. No difference was observed in ETS exposure between older child and younger child households (OR 0.98, 95%CI 0.91-1.05).
  
  
  CONCLUSIONS
  Households with children are marginally less likely than households without children to experience home ETS exposure.
authors.affiliation: School of Population & Public Health, Faculty of Medicine, University of British Columbia, Vancouver, Canada;
authors.forename: A L
authors.initials: AL
authors.lastname: Slogrove
authors.affiliation: Vaccine Evaluation Center, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, Canada.
authors.forename: J A
authors.initials: JA
authors.lastname: Bettinger
mesh_terms: D000367:Age Factors; D002170:Canada; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D006798:Housing; D006801:Humans; D019570:Inhalation Exposure / Q000009:adverse effects*; D016015:Logistic Models; D015999:Multivariate Analysis; D016017:Odds Ratio; D012307:Risk Factors; D012959:Socioeconomic Factors; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D014028:Tobacco Smoke Pollution