Residential magnetic fields exposure and childhood leukemia: a population-based case-control study in California

Authors: Kheifets L, Crespi CM, Hooper C, Cockburn M, Amoon AT, Vergara XP

Year: 2017 Sep 12

Category: Epidemiology

Journal: Cancer Causes Control

Institution: Electric Power Research Institute

DOI: 10.1007/s10552-017-0951-6

URL: https://www.ncbi.nlm.nih.gov/pubmed/28900736

Abstract

Overview

A comprehensive case-control study in California aimed to investigate the potential risks of childhood leukemia associated with residential exposure to magnetic fields generated by power lines.

Purpose

  • This large records-based study has meticulously analyzed the relationship between magnetic fields exposure and the increaded risk of childhood leukemia.

Methods

Involving 5,788 cases of childhood leukemia diagnosed in California between 1986 and 2008, the study calculated magnetic fields at the birth addresses using a blend of geographic information systems, aerial imagery, and historical data.

Findings

Using advanced statistical controls, the study identified:

  • A slight risk deficit in two of the intermediate exposure groups.
  • A small but notable excess risk in the highest exposure group, with odds ratios suggesting a possible increase in risk.
Attached analyses further iterated these patterns, though caution is advised due to wide confidence intervals.

Conclusion

While not conclusively showing clear evidence, the data aligns with prior studies suggesting potential increased risks of childhood leukemia with higher magnetic field exposure. Further research is recommended to expand on these findings.

electromagnetic fields childhood leukemia epidemiologic studies magnetic fields exposure case-control study health risks
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