Occupational exposure to electromagnetic fields (EMF) has been linked with brain tumors based on job titles and industry. A multi-center U.S. case-control study of benign and malignant brain tumors investigated occupational exposure to EMF using a detailed, rigorous assessment strategy to improve exposure assessment for EMF, in conjunction with industrial hygienists in DCEG. Four exposure metrics were evaluated: (1) maximum exposed job; (2) total years of exposure > 1.5 mG; (3) cumulative lifetime exposure; and (4) average lifetime exposure. No statistically significant elevation in odds ratios or trends in odds ratios across exposure categories were seen for glioma or meningioma.
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