title: [Impact of the Spanish smoking laws on the exposure to environmental tobacco smoke in Galicia (2005-2011)].
abstract: OBJECTIVE
  Prevalence of exposure to environmental tobacco smoke is a valuable index to assess the impact of the laws for tobacco control. The objective of this work is to analyse variations in the prevalence of exposure to environmental tobacco smoke in Galicia (Spain) between 2005, before the Law 28/2005, and 2011, after the law 42/2010.
  
  
  METHODS
  Data were obtained from five population-based independent cross-sectional studies, telephone surveys, developed in Galicia between 2005 and 2011 among population aged 16 to 74 (n=34.419). Self-reported exposure among population aged between 16 and 74 was analysed by setting and tobacco consumption by prevalence with 95% confidence intervals.
  
  
  RESULTS
  Environmental tobacco smoke exposure decreased dramatically in Galicia between 2005 and 2011. In 2005, before the Law 28/2005, 95% of the population reported exposure to environmental tobacco smoke compared to 28% in 2011, after the Law 42/2010. Decrease was greater in workplaces in 2006 and in leisure time venues in 2011. After an initial decrease in 2006, exposure at home remains unchanged.
  
  
  CONCLUSIONS
  An important reduction in self-reported exposure to environmental tobacco smoke occurred in Galicia in the period 2005-2011, specially after the introduction of Laws 28/2005 and 42/2010. Nevertheless, one in four of the population aged 16 to 74 remained exposed in 2011.
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España; Área de Medicina Preventiva y Salud Pública, Universidad de Santiago de Compostela, Santiago de Compostela, España. Electronic address: monica.perez.rios@usc.es.
authors.forename: Mónica
authors.initials: M
authors.lastname: Pérez-Ríos
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: María Isolina
authors.initials: MI
authors.lastname: Santiago-Pérez
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: Alberto
authors.initials: A
authors.lastname: Malvar
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: María
authors.initials: M
authors.lastname: Jesús García
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: Bernardo
authors.initials: B
authors.lastname: Seoane
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: Jorge
authors.initials: J
authors.lastname: Suanzes
authors.affiliation: Dirección Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, Santiago de Compostela, España.
authors.forename: Xurxo
authors.initials: X
authors.lastname: Hervada
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D061845:Smoke-Free Policy / Q000331:legislation & jurisprudence*; D012907:Smoking / Q000331:legislation & jurisprudence*; D013030:Spain; D013997:Time Factors; D014028:Tobacco Smoke Pollution / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data*; D055815:Young Adult; D014026:Nicotiana
chemical_list: D014028:Tobacco Smoke Pollution
keywords: Anti-smoking laws; Cross-sectional study; Environmental tobacco smoke; Epidemiology; Epidemiología; Estudio transversal; Humo ambiental de tabaco; Leyes reguladoras del consumo de tabaco; Passive smoking; Prevalence; Prevalencia; Tabaquismo pasivo