期刊
AMERICAN JOURNAL OF INDUSTRIAL MEDICINE
卷 57, 期 8, 页码 906-914出版社
WILEY
DOI: 10.1002/ajim.22318
关键词
cancer; cockpit crew; cohort study; cosmic radiation; mortality; occupation; pilots
资金
- National Death Index
Background We evaluated mortality among 5,964 former U. S. commercial cockpit crew (pilots and flight engineers). The outcomes of a priori interest were non-chronic lymphocytic leukemia, central nervous system (CNS) cancer (including brain), and malignant melanoma. Methods Vital status was ascertained through 2008. Life table and Cox regression analyses were conducted. Cumulative exposure to cosmic radiation was estimated from work history data. Results Compared to the U. S. general population, mortality from all causes, all cancer, and cardiovascular diseases was decreased, but mortality from aircraft accidents was highly elevated. Mortality was elevated for malignant melanoma but not for non-chronic lymphocytic leukemia. CNS cancer mortality increased with an increase in cumulative radiation dose. Conclusions Cockpit crew had a low all-cause, all-cancer, and cardiovascular disease mortality but elevated aircraft accident mortality. Further studies are needed to clarify the risk of CNS and other radiation-associated cancers in relation to cosmic radiation and other workplace exposures. (C) 2014 Wiley Periodicals, Inc.
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