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J Occup Environ Med. 2008 Jun;50(6):677-88. doi: 10.1097/JOM.0b013e3181757a27.

Occupational electromagnetic fields and leukemia and brain cancer: an update to two meta-analyses.

Author information

  • 1Department of Epidemiology, UCLA School of Public Health, Los Angeles, CA, USA. kheifets@ucla.edu

Abstract

OBJECTIVE:

To update past meta-analyses on occupational electromagnetic fields (EMF) and adult brain cancer and leukemia.

METHODS:

We collected and evaluated all relevant 1993 to 2007 publications. Summary estimates were obtained using various weighting schemes. To explore sources of heterogeneity, study characteristics were examined using regression analysis.

RESULTS:

Overall, for new studies, both brain cancer and leukemia showed small increases in risk estimates, 10% and 13%, respectively. Notably, pooled risk estimates were lower than in past meta-analyses, and leukemia subtypes showed no consistent pattern when past and present meta-analyses were compared.

CONCLUSIONS:

The lack of a clear pattern of EMF exposure and outcome risk does not support a hypothesis that these exposures are responsible for the observed excess risk. Findings were not sensitive to assumptions, influential studies, weighting schemes, publication bias, study characteristics, or funding source.

PMID:
18545095
DOI:
10.1097/JOM.0b013e3181757a27
[PubMed - indexed for MEDLINE]
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