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Childhood cancer and overhead powerlines: a case-control study.
A Myers1, A D Clayden, R A Cartwright
1Department of Physics, University of Leeds, UK.
British Journal of Cancer
|December 1, 1990
Summary
This study found no link between childhood cancer and living near overhead power lines or their magnetic fields. Limited data on proximity restricted the study's statistical power.
Area of Science:
- Environmental epidemiology
- Pediatric oncology
Background:
- Concerns exist regarding potential health risks, specifically childhood cancer, associated with residential proximity to overhead power lines.
- Electromagnetic fields (EMFs) generated by power lines are a focus of environmental health research.
Purpose of the Study:
- To investigate the association between childhood cancer incidence and exposure to magnetic fields from overhead power lines.
- To assess the relationship between proximity to overhead power lines and childhood cancer risk.
Main Methods:
- A case-control study design was employed, including 374 childhood cancer cases and 588 matched controls in the Yorkshire Health Region (1970-1979).
- Magnetic field strengths were calculated based on overhead power line network maps and load records at birth addresses.
- Proximity to overhead power lines was also assessed as a potential risk factor.
Main Results:
- No statistically significant association was found between childhood malignancies and either the proximity to overhead power lines or the calculated magnetic field strengths.
- The study's statistical power was constrained by a limited number of participants residing close to overhead power lines.
Conclusions:
- The findings do not support a link between overhead power line proximity/magnetic fields and childhood cancer.
- Further research with larger sample sizes in close proximity to power lines may be warranted to definitively rule out any potential association.