title: Indoor air pollution and respiratory health in urban and rural China.
abstract: During the summer of 1999, information about respiratory health outcomes and relevant covariates was collected from 3,709 Chinese adults in Beijing, Anqing City, and rural communities in Anqing Prefecture. Indoor PM10 and SO2 were measured in a random sample of selected households. Using logistic regression and controlling for important covariates (excluding PM10 and SO2) and familial intraclass correlation, highly significant differences were found between study areas in the prevalences of chronic cough, chronic phlegm, wheeze, and shortness of breath, but not physician-diagnosed asthma. Generally, the lowest prevalence of respiratory symptoms was observed in Anqing City, a higher prevalence in rural Anqing, and the highest prevalence in Beijing. Median indoor concentrations of PM10 were similar in Anqing City (239 microg/m3) and rural Anqing (248 microg/m3), but much higher in Beijing (557 microg/m3). Median indoor concentrations of SO2 were similar in all three areas (Beijing: 14 microg/m3, Anqing City: 25 microg/m3, rural Anqing: 20 microg/m3).
authors.affiliation: Program for Population Genetics, Harvard School of Public Health, Boston, Massachusetts 02115-6096, USA.
authors.forename: S A
authors.initials: SA
authors.lastname: Venners
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Ni
authors.forename: Y
authors.initials: Y
authors.lastname: Jin
authors.forename: J
authors.initials: J
authors.lastname: Yang
authors.forename: Z
authors.initials: Z
authors.lastname: Fang
authors.forename: X
authors.initials: X
authors.lastname: Xu
mesh_terms: D000328:Adult; D000393:Air Pollutants / Q000009:adverse effects / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000009:adverse effects / Q000032:analysis*; D002681:China / Q000453:epidemiology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012120:Respiration Disorders / Q000453:epidemiology* / Q000209:etiology; D012423:Rural Health / Q000706:statistics & numerical data*; D013458:Sulfur Dioxide / Q000009:adverse effects / Q000032:analysis*; D013997:Time Factors; D014504:Urban Health / Q000706:statistics & numerical data*
chemical_list: D000393:Air Pollutants; D013458:Sulfur Dioxide