Laboratory studies suggest that electric and magnetic field exposure may affect heart rate and heart rate variability.
Epidemiologic evidence indicates that depressed heart rate variability is associated with reduced survival from coronary heart disease as well as increased risk of developing coronary heart disease.
The authors examined mortality from cardiovascular disease in relation to occupational magnetic field exposure among a cohort of 138,903 male electric utility workers from five US companies over the period 1950-1988.
Cardiovascular disease deaths were categorized as arrhythmia related (n=212), acute myocardial infarction (n=4,238), atherosclerosis (n=142), or chronic coronary heart disease (n=2,210).
Exposure was classified by duration of work in jobs with elevated magnetic field exposure and indices of cumulative magnetic field exposure.
Adjusting for age, year, race, social class, and active work status, longer duration in jobs with elevated magnetic field exposure was associated with increased risk of death from arrhythmia-related conditions and acute myocardial infarction.
Indices of magnetic field exposure were consistently related to mortality from arrhythmia and acute myocardial infarction, with mortality rate ratios of 1.5-3.3 in the uppermost categories.
No gradients in risk were found for atherosclerosis or for chronic coronary heart disease. (...)
Mots-clés Pascal : Trouble rythme cardiaque, Homme, Mortalité, Etude cohorte, Exposition professionnelle, Champ magnétique, Industrie électrique, Médecine travail, Etats Unis, Amérique du Nord, Amérique, Champ électromagnétique, Effet biologique, Epidémiologie, Appareil circulatoire pathologie, Cardiopathie
Mots-clés Pascal anglais : Arrhythmia, Human, Mortality, Cohort study, Occupational exposure, Magnetic field, Electric power industry, Occupational medicine, United States, North America, America, Electromagnetic field, Biological effect, Epidemiology, Cardiovascular disease, Heart disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0127238
Code Inist : 002B12A02. Création : 16/11/1999.