Indoor exposure to radon from the ground and bronchial cancer in women |
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Authors: | Christer Svensson Gunnar Eklund Göran Pershagen |
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Institution: | (1) Department of Cancer Epidemiology, Radiumhemmet, Karolinska Institute, Box 60500, S-10401 Stockholm;(2) Department of Epidemiology, National Institute of Environmental Medicine, Box 60208, S-10401 Stockholm, Sweden |
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Abstract: | Summary A case-referent study on the possible association between radon emanating from the ground and bronchial cancer was carried out on 292 female lung cancer cases and 584 matched population referents. Both groups had lived for at least 30 years in the city of Stockholm, Sweden. The cases were diagnosed during 1972 to 1980 with oat-cell and other types of anaplastic pulmonary carcinomas. A sample of about 10% of the dwellings where cases and referents had lived was selected for measurements of radon and radon daughters. There was a relative risk of 2.2 (P = 0.01) for lung cancer associated with living in dwellings close to the ground in areas with an increased risk of radon emanation. Smoking habits did not appear to be a major confounding factor for this association, although a detailed evaluation was not possible. The measurements indicated increased radon daughter concentrations in ground level dwellings within radon risk areas where lung cancer cases had lived, suggesting that this exposure was of etiologic importance. |
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Keywords: | Case-referent study Lung cancer Oat cell carcinoma Radon |
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