title: [Prevalence of exposure to environmental tobacco smoke in a urban population].
abstract: OBJECTIVE
  We decided to assess the overall prevalence of exposure to environmental tobacco smoke (ETS) both in general and according to the settings of exposure (home, workplace and leisure time).
  
  
  METHODS
  We analyzed cross-sectional data of ETS exposure in 1,059 non-smokers included in the Cornellà Health Interview Survey Follow-up (CHIS-FU) study. We calculated the crude and age-standardized prevalence of ETS exposure in general and in the different settings.
  
  
  RESULTS
  69.5% (confidence interval [CI] 95%, 64.5%-74.4%) of men and 62.9% (CI 95%, 58.1%-67.6%) of women of the sample studied were exposed to ETS. We observed a decreasing trend of ETS exposure by age in both sexes. The age-standardized prevalence rates of ETS exposure according to the environment and sex were: 25.9% (95% CI, 21.8%-30.1%) at home, 55.1% (95% CI, 50.8%-59.4%) during leisure time and 34.0% (95% CI, 23.5%-45.6%) in the workplace in men, and 34.1% (95% CI, 29.8%-38.5%), 44.3% (95% CI, 40.5%-48.2%) and 30.1% (95% CI, 18.9%-41.3%), respectively, in women.
  
  
  CONCLUSIONS
  In this study, more than half of non-smokers were exposed to ETS.
authors.affiliation: Servicio de Prevención y Control del Cáncer, Institut Català d'Oncologia, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Twose
authors.forename: Anna
authors.initials: A
authors.lastname: Schiaffino
authors.forename: Montse
authors.initials: M
authors.lastname: García
authors.forename: Mercè
authors.initials: M
authors.lastname: Martí
authors.forename: Esteve
authors.initials: E
authors.lastname: Fernández
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D013030:Spain / Q000453:epidemiology; D014028:Tobacco Smoke Pollution / Q000706:statistics & numerical data*; D014505:Urban Population / Q000706:statistics & numerical data
chemical_list: D014028:Tobacco Smoke Pollution