Maternal occupational exposure to extremely low frequency magnetic fields and the risk of brain cancer in the offspring.
Published in: Cancer Causes Control 2009; 20 (6): 945-955
Aim of study (acc. to author)
Endpoint/type of risk estimation
Type of risk estimation:
(odds ratio (OR))
sewing machine operators
office machine operators
food and beverage preparers
broadcasting and entertainment industries
cumulative exposure in the 2-year period before pregnancy: ≥ 214.8 µT-days
average exposure in the 2-year period before pregnancy: ≥ 0.30 µT
peak exposure in the 2-year period before pregnancy: ≥ 0.4 µT
cumulative exposure during pregnancy: ≥ 73.6 µT-days
average exposure during pregnancy: ≥ 0.28 µT
peak exposure during pregnancy: ≥ 0.4 µT
1982 - 2002
Canada (provinces of Quebec and Ontario)
brain tumor, histologically verified
pediatric oncology centers of Quebec and Ontario, Canada
non-resident in the provinces
Statistical analysis method:
unconditional logistic regression
Conclusion (acc. to author)
Study funded by
Canadian Institutes of Health Research (CIHR)
Le Fonds de recherche du Québec – Santé (FRQS), Canada
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