@article {PereiraP1968, author = {Ana Margarida Pereira and M{\'a}rio Morais-Almeida and Ana S{\'a} e Sousa and Tiago Jacinto and Lu{\'\i}s Filipe Azevedo and Carlos Robalo Cordeiro and Ant{\'o}nio Bugalho de Almeida and Jo{\~a}o Almeida Fonseca}, title = {The INAsma study - Environmental tobacco smoke exposure at home and smoking prevalence in the Portuguese population}, volume = {40}, number = {Suppl 56}, elocation-id = {P1968}, year = {2012}, publisher = {European Respiratory Society}, abstract = {Background: The data on the prevalence of tobacco smoking and environmental tobacco smoke (ETS) exposure in Portugal is scarce, especially after the 2008 smoking bans.Aims: We aimed to: 1) estimate the prevalence of exposure to ETS at home and of tobacco smoking in Portugal; 2) identify variables associated with smoking or exposure to ETS.Methods: Nationwide, cross-sectional, population-based telephone survey; 6003 individuals participated. ETS exposure at home was defined as exposure to at least one current smoker (CS) at home. A smoker was someone with >=15 years smoking at least 1 cigarette per day during a year; a CS smoked in the last month.Results: Exposure to ETS at home was reported by 26.6\% (95\%CI 25.5-27.7). Age \<18 years old (OR=1.57; 95\%CI[1.17-2.12]), current asthma (OR=1.69; 95\%CI[1.16-2.46]), living in households with >=3 persons (OR=34.31; 95\%CI[4.45-264.57]) and presence of at least one men in the household (OR=6.71; 95\%CI[4.33-10.40]) were positively associated with ETS exposure.Nineteen percent (95\%CI 18.0-20.0) of the Portuguese population is CS and 17.2\% (95\%CI 16.2-18.2) are ex-smokers; CS prevalence is higher in males than females (26.5\% vs. 12.2\%, p\<0.001). The odds of being an adult CS was higher for male (OR=8.93; 95\%CI[6.10-13.09]), the more educated (OR=6.54; 95\%CI[3.97-10.77]), those living in households with >=3 persons (OR=2.21; 95\%CI[1.50-3.27]) and those exposed to ETS at home (14.39 [10.14-20.41]).Conclusion: Exposure to ETS at home in Portugal was higher than previously reported. Children/adolescents and asthma patients had a higher risk of exposure. The prevalence of tobacco smoking was slightly lower than in previous reports.}, issn = {0903-1936}, URL = {https://erj.ersjournals.com/content/40/Suppl_56/P1968}, eprint = {https://erj.ersjournals.com/content/40/Suppl_56/P1968.full.pdf}, journal = {European Respiratory Journal} }