title: Occupation and chronic bronchitis among Chinese women.
abstract: OBJECTIVE
  To examine the association between occupation and chronic bronchitis among a cross section of Chinese women who participated in the Shanghai Women's Health Study.
  
  
  METHODS
  Cases were 4873 women who self-reported a physician-diagnosed bronchitis during adulthood. Controls were 9746 women randomly selected from Shanghai Women's Health Study participants and matched with the cases by year of birth and age at diagnosis. Lifetime occupational histories were obtained. Logistic regressions were used to evaluate the association between chronic bronchitis and occupation, adjusting for smoking, education, family income, and concurrent asthma.
  
  
  RESULTS
  We observed excess prevalence of bronchitis for textile occupation (odds ratio, OR = 1.09; 95% CI = 1.00-1.18) and industry (OR = 1.11; 95% CI = 1.03-1.19), welders (OR = 1.40; 95% CI = 1.01-1.92), packing and baling workers (OR = 1.39; 95% CI = 1.15-1.68), and warehousing industry (OR = 1.58; 95% CI = 1.08-2.30) We also identified several new associations that may warrant further exploration and confirmation, including employment in some metal fabrication industries, postal and telecommunication industry, and a few white-collar occupations and industries.
  
  
  CONCLUSIONS
  Our study indicates that the risk of chronic bronchitis among women may be increased in some occupations and industries.
authors.affiliation: Occupational and Environmental Epidemiology Branch, National Cancer Institute, National Institutes of Health/DHHS, 6120 Executive Boulevard, Bethesda, MD 20892, USA.
authors.forename: Srmena
authors.initials: S
authors.lastname: Krstev
authors.forename: Bu-Tian
authors.initials: BT
authors.lastname: Ji
authors.forename: Xiao-Ou
authors.initials: XO
authors.lastname: Shu
authors.forename: Yu-Tang
authors.initials: YT
authors.lastname: Gao
authors.forename: Aaron
authors.initials: A
authors.lastname: Blair
authors.forename: Jay
authors.initials: J
authors.lastname: Lubin
authors.forename: Roel
authors.initials: R
authors.lastname: Vermeulen
authors.forename: Mustafa
authors.initials: M
authors.lastname: Dosemeci
authors.forename: Wei
authors.initials: W
authors.lastname: Zheng
authors.forename: Nathaniel
authors.initials: N
authors.lastname: Rothman
authors.forename: Wong-Ho
authors.initials: WH
authors.lastname: Chow
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D029481:Bronchitis, Chronic / Q000453:epidemiology*; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D016015:Logistic Models; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology*; D016273:Occupational Exposure / Q000009:adverse effects; D009790:Occupations; D012307:Risk Factors; D012959:Socioeconomic Factors