Cancer incidence among asbestos-exposed chemical industry workers: an extended observation period |
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Authors: | Bjrn Hilt Aage Andersen Jan Rosenberg Sverre Langiird |
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Institution: | Department of Occupational Medicine, Telemark Sentralsjukehus, Porsgrunn, Norway. |
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Abstract: | A previous study on the incidence of cancer in a cohort of 286 asbestos-exposed electrochemical industry workers observed from 1953 through 1980 has been extended with another 8 years of follow-up. The incidence of cancer was derived from the Cancer Registry of Norway, and the expected figures were calculated by a life table method. During the extended follow-up period from 1981 through 1988, among the cohort members there were 12 new cancer cases versus 14.2 expected (SIR 85, 95% CI 44-158). In a lightly exposed sub-cohort, the extended follow-up revealed 4 cases of lung cancer or pleural mesothelioma (ICD, 7th revision 162-163) versus 1.6 cases expected (SIR 256, 95% CI71-654). In a heavily exposed sub-cohort, the corresponding figures were 3 and 0.5 (SIR 588, 95% CI 118-1,725). |
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Keywords: | nitric acid production lung cancer malignant mesothelioma asbestos exposure |
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