A population-based cohort study of occupational exposure to magnetic fields and cardiovascular disease mortality.
OBJECTIVE
This cohort study aims to examine cardiovascular disease (CVD) mortality risks among workers in occupations potentially exposed to magnetic fields (MF).


METHODS
Risks for major CVD mortality by potential job-related MF exposure were examined in a sample of U.S. workers from the National Longitudinal Mortality Study using multivariate proportional hazards models.


RESULTS
After adjustment for demographic factors, there were no significant excess risks between individuals with medium (0.15 to <0.20 microT), high (0.20 to < 0.30 microT), or very high (>/= 0.30 microT) exposure levels as compared with individuals with background exposure levels of MF (<0.15 microT) for the CVD mortality outcomes. Indirect adjustment for potential confounding by current smoking prevalence did not change the pattern of these results.


CONCLUSIONS
Our study does not provide evidence for an association between occupational MF exposure and CVD mortality risk.
Cooper
Anna R
AR
Department of Community and Preventive Medicine, University of Rochester School of Medicine and Dentistry, New York 14642, USA.
Van Wijngaarden
Edwin
E
Fisher
Susan G
SG
Adams
M Jacob
MJ
Yost
Michael G
MG
Bowman
Joseph D
JD
D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000401:mortality*; D015331:Cohort Studies; D004574:Electromagnetic Fields / Q000009:adverse effects*; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000401:mortality*; D016273:Occupational Exposure / Q000706:statistics & numerical data*; D012307:Risk Factors