期刊
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
卷 54, 期 1, 页码 56-63出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/JOM.0b013e31823c141c
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Objective: To examine the association between cumulative fiber exposure and health outcomes in workers (n = 336) with Libby amphibole exposure. Methods: Exposure response relationships were explored by the use of logistic regression, with cumulative fiber exposure modeled in categories and as a continuous variable. Results: The use of spline functions with lifetime cumulative fiber exposure as a continuous variable showed that the odds of localized pleural thickening were significantly elevated at less than I f/cc-y. Odds of parenchymal abnormalities, restrictive spirometry, and chronic bronchitis were also significantly elevated at 108, 166, and 24. f/cc-y, respectively. Conclusions: The odds of several pulmonary health outcomes are correlated with cumulative exposure to Libby amphibole. That relatively low-lifetime cumulative exposures are associated with localized pleural thickening has implications for the non cancer-risk assessment for Libby amphibole.
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