An Investigation of Brain Tumors Among Chemical Plant Employees Using a Sample‐Based Cohort Method
作者:
Gordon Reeve,
Gregory Bond,
J. Lloyd,
Ralph Cook,
Richard Waxweiler,
William Fishbeck,
期刊:
Journal of Occupational Medicine
(OVID Available online 1983)
卷期:
Volume 25,
issue 5
页码: 387-393
ISSN:0096-1736
年代: 1983
出版商: OVID
数据来源: OVID
摘要:
Using a modification of the traditional cohort mortality methodology, risk estimates of death due to brain tumors were calculated for production and nonproduction employees of Dow Chemical U.S.A., Texas Division. A total of 25 malignant, benign and unspecified brain tumors were identified using a geographically limited record-linkage process. Expected deaths were extrapolated from 1,666 white males in a 5% sample of the 1940 through 1977 total workforce. The resulting sample-based standardized mortality ratios (which were not evaluated for statistical significance) suggest, at most, only a slight increased risk of mortality from brain tumors for the overall time period. There was, however, a probable elevated risk associated with first employment prior to 1945. To date, diminished risk has been noted for those hired during subsequent years.
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