title: Chronic bronchitis among nonsmoking farm women in the agricultural health study.
abstract: OBJECTIVE
  The purpose of this study was to examine agricultural risk factors for chronic bronchitis among nonsmoking farm women.
  
  
  METHODS
  We used self-reported enrollment data from the 21,541 nonsmoking women in the Agricultural Health Study to evaluate occupational risk factors for prevalent chronic bronchitis among farm women. Odds ratios (ORs) for chronic bronchitis for occupational exposures were adjusted for age, state, and related agricultural exposures.
  
  
  RESULTS
  Applying manure and driving combines were independently associated with chronic bronchitis. Off-farm job exposures associated with chronic bronchitis were organic dusts, asbestos, gasoline, and solvents. Five pesticides were associated with chronic bronchitis after multivariate adjustment and sensitivity analyses: dichlorvos (OR=1.63, 95% CI=1.01, 2.61), DDT (OR=1.67, 95% CI=1.13, 2.47), cyanazine (OR=1.88, 95% CI=1.00, 3.54), paraquat (OR=1.91, 95% CI=1.02, 3.55), and methyl bromide (OR=1.82, 95% CI=1.02, 3.24).
  
  
  CONCLUSIONS
  Pesticides as well as grain and dust exposures were associated with chronic bronchitis among nonsmoking farm women.
authors.affiliation: Epidemiology, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, NC 27709-2233, USA.
authors.forename: Martin
authors.initials: M
authors.lastname: Valcin
authors.forename: Paul K
authors.initials: PK
authors.lastname: Henneberger
authors.forename: Greg J
authors.initials: GJ
authors.lastname: Kullman
authors.forename: David M
authors.initials: DM
authors.lastname: Umbach
authors.forename: Stephanie J
authors.initials: SJ
authors.lastname: London
authors.forename: Michael C R
authors.initials: MC
authors.lastname: Alavanja
authors.forename: Dale P
authors.initials: DP
authors.lastname: Sandler
authors.forename: Jane A
authors.initials: JA
authors.lastname: Hoppin
mesh_terms: D000328:Adult; D000368:Aged; D000383:Agriculture; D029481:Bronchitis, Chronic / Q000453:epidemiology* / Q000209:etiology / Q000503:physiopathology; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D007484:Iowa; D008875:Middle Aged; D009657:North Carolina; D016273:Occupational Exposure; D016017:Odds Ratio; D010575:Pesticides / Q000009:adverse effects; D011446:Prospective Studies; D011795:Surveys and Questionnaires
chemical_list: D010575:Pesticides