This meta-analysis demonstrates that ELF-EMFs might be related to an increased risk for female breast cancer.

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PMID: 

PLoS One. 2013 ;8(7):e69272. Epub 2013 Jul 15. PMID: 23869239

Abstract Title: 

A meta-analysis on the relationship between exposure to ELF-EMFs and the risk of female breast cancer.

Abstract: 

OBJECTIVE: To comprehensively analyze the relationship between exposure to extremely low frequency electromagnetic fields (ELF-EMFs) and the development of female breast cancer.
METHODS: Reports of case-control studies published from 1990 to 2010 were analyzed. The quality effect model was chosen to calculate total odds ratio (OR) depending on the data in studies and quality scores. Subgroup analyses were also performed by the situation of menopause, estrogenic receptor and exposure assessment respectively.
RESULTS: For all 23 studies the OR was 1.07, 95% CI=1.02-1.13, for estrogen receptor positive subgroup,OR=1.11, 95% CI=1.03-1.20; for premenopausal subgroup, OR=1.11, 95% CI=1.00-1.23. The results of other subgroups showed no significant association between ELF-EMF and female breast cancer.
CONCLUSION: ELF-EMFs might be related to an increased risk for female breast cancer, especially for premenopausal and ER+ females. However, it's necessary to undertake better epidemiologic researches to verify the association between ELF-EMF and female breast cancer due to the limits of current study, especially the one on exposure assessment.