Residential distance from high-voltage overhead power lines and risk of Alzheimer's dementia and Parkinson's disease: population-based case-control study

Authors: Gervasi F, Murtas R, Decarli A, Giampiero Russo A

Year: 2019 Jul 6

Category: Epidemiology

Journal: Int J Epidemiol

DOI: 10.1093/ije/dyz139

URL: https://www.ncbi.nlm.nih.gov/pubmed/31280302

Abstract

Overview

The association of extremely low-frequency magnetic fields (ELF-MF) generated by overhead power lines with neurodegenerative diseases continues to be controversial. This particular study focuses on the interaction between residential proximity to high-voltage power lines and the incidence of Alzheimer's and Parkinson's diseases in Northern Italy.

Methods

  • A population-based case-control study in Milan metropolitan area from 2011 to 2016.
  • Participants were matched by sex, year of birth, and municipality.
  • Conditional logistic regression models used, adjusted for socio-economic deprivation and major road network proximity.

Findings

Odds ratios for Alzheimer's disease (1.11) and Parkinson's disease (1.09) were noted for residents living less than 50 meters from power lines compared to those living more than 600 meters away.

Conclusion

Results suggest a weak association between exposure to ELF-MF and increased risk for Alzheimer's and Parkinson’s diseases, urging the continuation of refined research designs in this area. The disparate results across studies highlight the need for stringent methods in future research to draw clearer conclusions.

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