American Journal of Epidemiology Vol. 146, No. 1: 87-90
Copyright © 1997 by The Johns Hopkins University School of Hygiene and Public Health
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Leukemia Risk and Occupational Electric Field Exposure County, California in Los Angeles
1EMF Health Assessment and Management, Environment Group, Electric Power Research Institute Palo Alto, CA
2Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park NC
3Division of Occupational and Environmental Health, Department of Preventive Medicine, University of Southern California School of Medicine Los Angeles, CA
Reprint requests to Dr. Leeka I. Khelfets, Electric Power Research Institute, 3412 Hillview Avenue, Palo Alto, CA 94303
The authors analyzed data on electric fields from a prior study of occupational magnetic field exposure and leukemia risk conducted in Los Angeles County, California, in 19721990. Ranking of exposure differed somewhat for magnetic and electric fields. The odds ratios were 1.22 (95% confidence interval (CI) 0.801.86) and 1.15 (95% confidence interval 0.781.72) for medium and high exposure categones, respectively, and there was no clear evidence of an exposure-response relation (odds ratio for 10 V/m increase=1.05, 95% CI 0.951.16). Although not conclusive, our analyses provide little support for an association between occupational electric field exposure and leukemia. Am J Epidemiol 1997;146:8790.
electromagnetic fields; leukemia; occupations
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