News
4/7/2014

CREAL: Occupational exposure to extremely low frequency magnetic fields and brain tumour risks in the INTEROCC study

CREAL: Occupational exposure to extremely low frequency magnetic fields and brain tumour risks in the INTEROCC study


News from CREAL


Result from this study published in Cancer Epidemiology, Biomarkers and Prevention showed associations between extremely low frequency magnetic fields (ELF) exposure in the recent past and risk of glioma (the most frequent type of brain tumours in adults).

Occupational exposure to extremely low frequency magnetic fields (ELF) is a suspected risk factor for brain tumours, however the literature is inconsistent. Analyses of data from the seven countries (Australia, Canada, France, Germany, Israel, New Zealand, United Kingdom) in the INTEROCC study lead by CREAL, an ISGlobal research center, examined associations between occupational ELF exposure in different time windows of exposure and specific histologic types of brain tumours. The study included over 3,700 brain tumour cases and 5,400 control subjects.

Researchers found significant positive associations between cumulative ELF in the time window 1-4 years prior to the date of diagnosis/reference date and glioma, and weaker associations with meningioma. Michelle C. Turner, a CREAL researcher and first author of the publication, explains that “occupational ELF may play a role in the later stages (promotion and progression) of brain tumourigenesis”.

More information:
CREAL news

Reference:
Turner MC, Benke G, Bowman JD, Figuerola J, Fleming S, Hours M, Kincl L, Krewski D, McLean D, Parent ME, Richardson L, Sadetzki S, Schlaefer K, Schlehofer B, Schuz J, Siemiatycki J, Van Tongeren M, Cardis E. Occupational exposure to extremely low frequency magnetic fields and brain tumour risks in the INTEROCC study. Cancer Epidemiol Biomarkers Prev. 2014 Jun 16;