Annals of Oncology Advance Access originally published online on September 13, 2006
Annals of Oncology 2006 17(12):1842-1847; doi:10.1093/annonc/mdl307
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© 2006 European Society for Medical Oncology
epidemiology |
Occupational exposure to diesel exhausts and risk for lung cancer in a population-based casecontrol study in Italy
1 Unit of Cancer Epidemiology, CeRMS and Centre for Oncologic Prevention, University of Turin, Italy
2 Unit of Occupational Safety and Health, ASUR Marche Local Department n. 8, Civitanova Marche, Italy
3 Unit of Environmental Cancer Epidemiology, International Agency for Research on Cancer, Lyon, France
* Correspondence to: Dr L. Richiardi, Unit of Cancer Epidemiology, University of Turin, V. Santena 7, 10126, Torino, Italy. Tel: +39-011-6334673; Fax: +39-011-6334664; E-mail: Lorenzo.Richiardi{at}unito.it
Background: We studied the effect of exposure to diesel exhausts on lung cancer risk in a population-based casecontrol study in the city of Turin, Italy.
Patients and methods: Information on occupational histories of 595 incident lung cancer cases diagnosed in 19911992 and 845 population controls was obtained. During the interviews, diesel job-specific modules (D-JSMs) were administered whenever subjects had worked in occupations included in the following nine categories: railroad workers, miners, professional drivers and transport conductors, heavy-machine operators, mechanics and testers, filling station attendants, motor-vehicle park attendants, transport equipment operators, and occupations carried out in/near urban roads. All D-JSMs were evaluated for probability, intensity and frequency of exposure.
Results: The odds ratio for ever exposure to diesel exhausts was 1.04 (95% confidence interval 0.791.37), after adjusting for age, sex, smoking and having worked in occupations entailing exposure to known lung carcinogens. No association was found with intensity, probability and duration of exposure.
Conclusions: Although misclassification of the exposure may have contributed to the negative results, we did not find an association between occupational exposure to diesel exhausts and lung cancer risk.
Key words: diesel exhausts, lung cancer, occupational exposure, casecontrol studies, exposure assessment
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