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  • Title: Lung structure as a risk factor in adverse pulmonary responses to asbestos exposure. A case-referent study in Quebec chrysotile miners and millers.
    Author: Becklake MR, Toyota B, Stewart M, Hanson R, Hanley J.
    Journal: Am Rev Respir Dis; 1983 Sep; 128(3):385-8. PubMed ID: 6311060.
    Abstract:
    To investigate the hypothesis that lung structure may predispose to the development of asbestos-related pulmonary fibrosis, we carried out a case-referent study using data gathered in a cross-sectional study of Quebec chrysotile asbestos miners and millers. Tracheal and thoracic measurements were derived from the routine chest radiographs of 44 men with established radiologic fibrosis and compared with similar measurements for 88 men matched for age and cumulative exposure in the same industry who had not developed pulmonary fibrosis. Intrathoracic tracheal lengths were, on the average, shorter, and transthoracic diameters narrower in cases compared with those in referents. In addition, cases were shorter than the referents, suggesting that height might be an indirect measure of the structural characteristics relevant to the response to inhaled asbestos particles. Our findings are thus consistent with the hypothesis outlined, and they suggest a line of investigation that might be useful in relation to other inhaled pollutants.
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