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J Epidemiol Community Health. 2011 Jan;65(1):83-5. doi: 10.1136/jech.2009.097709. Epub 2010 Jul 13.

The relationship between residential proximity to extremely low frequency power transmission lines and adverse birth outcomes.

Author information

  • 1Institut National de Santé Publique du Québec, Montréal, Canada. nathalie.auger@inspq.qc.ca

Abstract

BACKGROUND:

Occupational exposure to electromagnetic fields has been linked to adverse birth outcomes. This study evaluated whether maternal residential proximity to power transmission lines was associated with adverse birth outcomes.

METHODS:

Live singleton births in the Montréal and Québec census metropolitan areas from 1990 to 2004 were extracted from the Québec birth file (N=707,215). Proximity was defined as residing within 400 m of a transmission line. Generalised estimating equations were used to evaluate associations between residential proximity to transmission lines and preterm birth (PTB), low birth weight (LBW), small-for-gestational age (SGA) birth and infant sex, accounting for maternal age, education, marital status, ethnicity, parity, period of birth, and neighbourhood median household income.

RESULTS:

There was no association between residential proximity to transmission lines and PTB, LBW and infant sex in unadjusted and adjusted models. A lower likelihood of SGA birth was present for some distance categories (eg, adjusted OR 0.88, 95% CI 0.81 to 0.95 for 50-75 m relative to ≥400 m).

CONCLUSION:

Residential proximity to transmission lines is not associated with adverse births outcomes.

PMID:
20628083
DOI:
10.1136/jech.2009.097709
[PubMed - indexed for MEDLINE]
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