title: Lung cancer and occupation in nonsmokers: a multicenter case-control study in Europe.
abstract: BACKGROUND
  Tobacco smoking is the main cause for lung cancer worldwide, making it difficult to examine the carcinogenic role of other risk factors because of possible confounding by smoking. Therefore, the present study aimed to investigate the association between lung cancer and occupation independent of smoking.
  
  
  METHODS
  A case-control study of lung cancer was carried out between March 1998 and January 2002 in 16 centers from 7 European countries, including 223 never-smoking cases and 1039 controls. Information on lifestyle and occupation was obtained through detailed questionnaires. Job and industries were classified as entailing exposure to known or suspected carcinogens; in addition, expert assessment provided exposure estimates to specific agents.
  
  
  RESULTS
  The odds ratio of lung cancer among women employed for more than 12 years in suspected high-risk occupations was 1.75 (95% confidence interval = 0.63-4.85). A comparable increase in risk was not detected for employment in established high-risk occupations or among men. Increased risk of lung cancer was suggested among individuals exposed to nonferrous metal dust and fumes, crystalline silica, and organic solvents.
  
  
  CONCLUSIONS
  Occupations were found to play a limited role in lung cancer risk among never-smokers. Jobs entailing exposure to suspected lung carcinogens should receive priority in future studies among women. Nonferrous metal dust and fumes and silica may exert a carcinogenic effect independently from smoking.
authors.affiliation: International Agency for Research on Cancer, Lyon, France.
authors.forename: Ariana
authors.initials: A
authors.lastname: Zeka
authors.forename: Andrea't
authors.initials: A
authors.lastname: Mannetje
authors.forename: David
authors.initials: D
authors.lastname: Zaridze
authors.forename: Neonila
authors.initials: N
authors.lastname: Szeszenia-Dabrowska
authors.forename: Peter
authors.initials: P
authors.lastname: Rudnai
authors.forename: Jolanta
authors.initials: J
authors.lastname: Lissowska
authors.forename: Eleonóra
authors.initials: E
authors.lastname: Fabiánová
authors.forename: Dana
authors.initials: D
authors.lastname: Mates
authors.forename: Vladimir
authors.initials: V
authors.lastname: Bencko
authors.forename: Marie
authors.initials: M
authors.lastname: Navratilova
authors.forename: Adrian
authors.initials: A
authors.lastname: Cassidy
authors.forename: Vladimir
authors.initials: V
authors.lastname: Janout
authors.forename: Noemie
authors.initials: N
authors.lastname: Travier
authors.forename: Joelle
authors.initials: J
authors.lastname: Fevotte
authors.forename: Tony
authors.initials: T
authors.lastname: Fletcher
authors.forename: Paul
authors.initials: P
authors.lastname: Brennan
authors.forename: Paolo
authors.initials: P
authors.lastname: Boffetta
mesh_terms: D016022:Case-Control Studies; D005060:Europe / Q000453:epidemiology; D005260:Female; D006801:Humans; D007221:Industry; D008019:Life Style; D016015:Logistic Models; D008175:Lung Neoplasms / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects*; D015995:Prevalence; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D014028:Tobacco Smoke Pollution