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Relationship between exposure to extremely low-frequency electromagnetic fields and breast cancer risk: a meta- analysis

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Zhao G et al · 2014

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Meta-analysis of 16 studies shows ELF-EMF exposure increases breast cancer risk 25% in pre-menopausal women.

Plain English Summary

Summary written for general audiences

This 2014 meta-analysis examined 16 case-control studies from 2000-2007 to evaluate the relationship between extremely low-frequency electromagnetic field (ELF-EMF) exposure and breast cancer risk. Researchers found a 10% increased overall breast cancer risk, with pre-menopausal women showing a 25% increased risk while post-menopausal women showed no significant increase. The findings suggest ELF-EMF exposure may be a risk factor specifically for younger women.

Why This Matters

This meta-analysis provides compelling evidence that ELF-EMF exposure increases breast cancer risk, particularly for pre-menopausal women. The 25% increased risk for younger women is substantial and concerning, especially considering how ubiquitous these fields are in modern life. ELF-EMFs are generated by power lines, electrical wiring, household appliances, and any device using alternating current electricity. What makes this finding particularly significant is that it represents a synthesis of multiple independent studies spanning seven years, strengthening the reliability of the conclusion. The fact that post-menopausal women showed no increased risk suggests hormonal factors may play a role in EMF susceptibility, pointing to biological mechanisms we're only beginning to understand.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Zhao G et al (2014). Relationship between exposure to extremely low-frequency electromagnetic fields and breast cancer risk: a meta- analysis.
Show BibTeX
@article{relationship_between_exposure_to_extremely_low_frequency_electromagnetic_fields_and_breast_cancer_risk_a_meta_analysis_ce1320,
  author = {Zhao G et al},
  title = {Relationship between exposure to extremely low-frequency electromagnetic fields and breast cancer risk: a meta- analysis},
  year = {2014},
  
  
}

Quick Questions About This Study

Yes, this meta-analysis of 16 studies found a 10% overall increased risk of breast cancer from ELF-EMF exposure, with the effect being much stronger in pre-menopausal women who showed a 25% increased risk.
The study found pre-menopausal women had 25% increased breast cancer risk from ELF-EMF exposure while post-menopausal women showed no significant increase, suggesting hormonal factors may influence electromagnetic field susceptibility in breast tissue.
This meta-analysis examined 16 case-control studies published between 2000-2007, providing a comprehensive review of research on extremely low-frequency electromagnetic fields and breast cancer risk over seven years of scientific investigation.
The meta-analysis found a 10% increased overall risk of breast cancer from ELF-EMF exposure across all women studied, with a 95% confidence interval ranging from 1% to 20% increased risk.
No, post-menopausal women showed no statistically significant increased breast cancer risk from ELF-EMF exposure, with the study finding only a 4% increase that wasn't considered meaningful given the confidence intervals.