Lung cancer mortality and occupational exposure to asbestos among telephone linemen: a historical cohort study in france.

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Meguellati-Hakkas, Djamila | Cyr, Diane | Stücker, Isabelle | Févotte, Joëlle | Pilorget, Corinne | Luce, Danièle | Guénel, Pascal

Edité par CCSD -

International audience. OBJECTIVE:: The authors studied the mortality by lung cancer in telephone linemen exposed to asbestos at low levels during installation of telephone cables. METHODS:: Three hundred eight lung cancers deaths were identified in the cohort. Exposure to asbestos and to other occupational carcinogens was assessed using a job-exposure matrix. RESULTS:: The relative risk for lung cancer death associated with an estimated exposure of approximately 2 f/cc-years was 2.1 (95% confidence interval = 1.1-4.0) as compared with workers exposed to less than 0.5 f/cc-years. Mean annual exposure or exposure duration were not clearly related to lung cancer. Adjustment for other occupational lung carcinogens did not change this finding. CONCLUSION:: The observed mortality by lung cancer associated with asbestos exposure at low levels is higher than the prediction based on linear downward extrapolations from highly exposed occupational cohorts.

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