Kreftrisiko blant norske papir- og cellulosearbeidere
Cancer risk in Norwegian pulp and paper workers. Nor J Epidemiol 2001; 11 (2): 187-192.
Results from a historical prospective cohort study on Norwegian pulp and paper workers showed a significant
increase in risk of lung cancer, pleural mesothelioma, colon cancer and malignant melanomas among
men, compared to the Norwegian population. The risk of lung cancer was highest among sulphite mill
workers. The risk of pleural mesothelioma was highest among maintenance workers with asbestos exposure.
Most of the increased risk in lung cancer can be explained by a combination of smoking habits and
asbestos use, although an effect of other work-related exposures (sulfur and chloride compounds, wood
dust) cannot be excluded. Among the female part of the cohort we found a significant excess in risk of
ovarian cancer. The risk was highest among those younger than 55 years, and mostly among those working
in paper departments. Relatively little is known about the causes of ovarian cancer, but it is however
known that 5-7% can be explained by hereditary factors. Furthermore, fertility pattern plays a role.
Asbestos and talc, which both have been used in the pulp and paper industry, are occupational and environmental
agents, discussed as possible carcinogens for ovarian cancer.
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