Abstract

Overview of Study

Background researchers have been investigating the link between extremely-low-frequency magnetic fields (MF) and childhood leukemia through over forty studies. The latest pools these studies aggregating individual data for a comprehensive analysis.

Methods Employed

• This analysis compiles individual-level data from four recent studies, totaling 24,994 cases and 30,769 controls.

Key Findings

Contrastingly to older studies, recent data shows no increased leukemia risk in children exposed to higher MF levels (odds ratio OR = 1.01 for exposure ≥0.4 μT). This includes no association across various segments like acute lymphoblastic leukemia or studies using calculated fields.

Conclusion

The study concludes a visible decline in the risk association over time between MF exposure and childhood leukemia, suggesting a potential decrease in effect or methodological variances influencing outcomes.