BACKGROUND AND OBJECTIVE: Exposure to particulate matter (PM) can induce airway inflammation and exacerbation of asthma. However, there is limited knowledge about the effects of exposure to indoor sources of PM. We investigated the associations between self-reported exposure to indoor sources of PM and lower airway symptoms and lung function. METHODS: A population-based cross-sectional study of 3471 persons aged 18-69 years was conducted. Information about exposure to indoor sources of PM and airway symptoms was obtained from a self-administered questionnaire. RESULTS: Exposure to wood stoves, candles and gas cookers was not significantly associated with an increased prevalence of lower respiratory symptoms or decreased lung function. In contrast, persons exposed to environmental tobacco smoke for >5 h/day had a significantly increased risk of 'wheeze' (OR 1.69, 95% CI: 1.24-2.30) and 'chronic cough' (OR 1.57, 95% CI: 1.12-2.20), as well as decreased lung function (FEV(1)% predicted), compared with those who were not exposed. Similar trends were observed in never smokers. CONCLUSIONS: In this cross-sectional study of an adult general population, self-reported exposure to environmental tobacco smoke, but not self-reported exposure to wood stoves, candles or gas cookers, appeared to be associated with an increased prevalence of lower airway symptoms and decreased lung function.
BACKGROUND AND OBJECTIVE: Exposure to particulate matter (PM) can induce airway inflammation and exacerbation of asthma. However, there is limited knowledge about the effects of exposure to indoor sources of PM. We investigated the associations between self-reported exposure to indoor sources of PM and lower airway symptoms and lung function. METHODS: A population-based cross-sectional study of 3471 persons aged 18-69 years was conducted. Information about exposure to indoor sources of PM and airway symptoms was obtained from a self-administered questionnaire. RESULTS: Exposure to wood stoves, candles and gas cookers was not significantly associated with an increased prevalence of lower respiratory symptoms or decreased lung function. In contrast, persons exposed to environmental tobacco smoke for >5 h/day had a significantly increased risk of 'wheeze' (OR 1.69, 95% CI: 1.24-2.30) and 'chronic cough' (OR 1.57, 95% CI: 1.12-2.20), as well as decreased lung function (FEV(1)% predicted), compared with those who were not exposed. Similar trends were observed in never smokers. CONCLUSIONS: In this cross-sectional study of an adult general population, self-reported exposure to environmental tobacco smoke, but not self-reported exposure to wood stoves, candles or gas cookers, appeared to be associated with an increased prevalence of lower airway symptoms and decreased lung function.
Authors: Edmund O'Brien; Page C Spiess; Aida Habibovic; Milena Hristova; Robert A Bauer; Matthew J Randall; Matthew E Poynter; Albert van der Vliet Journal: J Immunotoxicol Date: 2015-04-15 Impact factor: 3.000
Authors: John R Balmes; Miriam Cisternas; Patricia J Quinlan; Laura Trupin; Fred W Lurmann; Patricia P Katz; Paul D Blanc Journal: Environ Res Date: 2014-01-11 Impact factor: 6.498
Authors: Gregory B Diette; Roberto A Accinelli; John R Balmes; A Sonia Buist; William Checkley; Paul Garbe; Nadia N Hansel; Vikas Kapil; Stephen Gordon; David K Lagat; Fuyuen Yip; Kevin Mortimer; Rogelio Perez-Padilla; Christa Roth; Julie M Schwaninger; Antonello Punturieri; James Kiley Journal: Glob Heart Date: 2012-09-25
Authors: Francine Laden; Yueh-Hsiu Chiu; Eric Garshick; S Katharine Hammond; Jaime E Hart Journal: BMC Public Health Date: 2013-02-01 Impact factor: 3.295