title: [Impact of the 28/2005 Spanish smoking law on second-hand smoke exposure in Barcelona].
abstract: OBJECTIVE
  To assess the impact of the 28/2005 Spanish smoking law on exposure to second-hand smoke (SHS) in Barcelona.
  
  
  METHODS
  We performed a pre-post evaluation study. Two cross-sectional surveys were compared. Data were obtained from the Barcelona Health Surveys of 2000 and 2006. The prevalence of SHS exposure among non-smoking adults was analyzed by setting (home, workplace and leisure time) and sociodemographic variables.
  
  
  RESULTS
  SHS exposure in non-smokers significantly decreased between 2000 and 2006 (p < 0.01). Odds ratios adjusted by sex, age and social class were 0.7 (95% CI: 0.6-0.8) for home and 0.2 (95% CI: 0.2-0.3) for workplace exposure in 2006 compared with 2000. In both settings, the decrease in exposure was greater in the higher social classes. After the implementation of the law, almost 50% of the population remained exposed to SHS during leisure time, younger people being the most exposed (83.5%).
  
  
  CONCLUSIONS
  After the implementation of the law, the prevalence of SHS exposure in non-smokers in Barcelona decreased significantly in workplaces and in the home. Nevertheless, nearly half of the population remained exposed to SHS during leisure time.
authors.affiliation: Servicio de Evaluación y Métodos de Intervención, Agencia de Salud Pública de Barcelona, Barcelona, España.
authors.forename: Sandra
authors.initials: S
authors.lastname: Manzanares-Laya
authors.forename: María J
authors.initials: MJ
authors.lastname: López
authors.forename: Francesca
authors.initials: F
authors.lastname: Sánchez-Martínez
authors.forename: Esteve
authors.initials: E
authors.lastname: Fernández
authors.forename: Manel
authors.initials: M
authors.lastname: Nebot
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D004781:Environmental Exposure; D005260:Female; D019983:Guideline Adherence; D006798:Housing; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D011633:Public Facilities; D012907:Smoking / Q000331:legislation & jurisprudence*; D012923:Social Class; D013030:Spain; D014028:Tobacco Smoke Pollution / Q000517:prevention & control* / Q000706:statistics & numerical data; D014504:Urban Health; D017132:Workplace; D055815:Young Adult
chemical_list: D014028:Tobacco Smoke Pollution