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NIOSH studies of oil shale workers.

Authors
Costello-J
Source
Health Issues Related to Metal and Nonmetallic Mining. Wagner WL, Rom WN, Merchant JA, eds., Boston, MA: Butterworth Publishers, 1983 Jan; :497-507
Link
NIOSHTIC No.
00170254
Abstract
The results of a mortality study, a case control study, and a morbidity study involving more than 1000 oil shale workers, carried out by NIOSH, were presented. The results of the mortality study indicated that with the exception of a significant increase in the standardized mortality ratios (SMR) for all malignant neoplasms and for colon cancer, the oil shale workers exhibited the healthy worker effect. A decrease in the death rates for all causes and for diseases of the circulatory system was established. As compared to the general population, the SMRs of the oil shale workers for respiratory disease were unchanged, while the small increase in accidents was not statistically significant. The highest SMRs were recorded in maintenance workers and the lowest in miners. The results of the case control study failed to implicate exposure to oil shale as the agent responsible for the increase in SMRs for respiratory and digestive cancer, while it established an association between the occurrence of these cancers and exposure to radioactivity and smoking. A statistically significant relationship was established between the prevalence of actinic keratosis and exposure to oil shale work, while the prevalence of metaplasia in sputum samples showed a positive association with years of exposure to oil shale production work.
Keywords
NIOSH-Author; Petroleum-industry; Epidemiology; Mortality-surveys; Cancer-rates; Mortality-rates; Morbidity-rates; Case-studies; Skin-disorders
Publication Date
19830101
Document Type
Conference/Symposia Proceedings
Editors
Wagner-WL; Rom-WN; Merchant-JA
Fiscal Year
1983
NTIS Accession No.
NTIS Price
ISBN No.
0250406101
Source Name
Health Issues Related to Metal and Nonmetallic Mining. Papers presented at the Fourth Annual RMCOEH Occupational and Environmental Health Conference held at Park City, Utah, on April 7-9, 1982, sponsored by the Rocky Mountain Center for Occupational and Environmental Health.
State
MA; UT
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