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Childhood leukaemia and distance from power lines in California: a population-based case-control study.


ABSTRACT:

Background

Studies have reported an increased risk of childhood leukaemia associated with living near high-voltage electric power transmission lines that extend to distances at which magnetic fields from lines are negligible. We conducted a large records-based case-control study of childhood leukaemia risk in the population living near power lines in California.

Methods

The study included 5788 childhood leukaemia and 3308 central nervous system (CNS) cancer cases (for comparison) born in and diagnosed in California (1986-2008), and matched to population-based controls by age and sex. We geocoded birth address and estimated the distance from residence to transmission lines using geographic information systems, aerial imagery, and, for some residences, site visits.

Results

For leukaemia, there was a slight excess of cases within 50?m of a transmission line over 200?kV (odds ratio 1.4, 95% confidence interval 0.7-2.7). There was no evidence of increased risk for distances beyond 50?m, for lower-voltage lines, or for CNS cancers.

Conclusions

Our findings did not clearly support an increased childhood leukaemia risk associated with close proximity (<50?m) to higher voltage lines, but could be consistent with a small increased risk. Reports of increased risk for distances beyond 50?m were not replicated.

SUBMITTER: Crespi CM 

PROVIDER: S-EPMC4931365 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Publications

Childhood leukaemia and distance from power lines in California: a population-based case-control study.

Crespi Catherine M CM   Vergara Ximena P XP   Hooper Chris C   Oksuzyan Sona S   Wu Sheng S   Cockburn Myles M   Kheifets Leeka L  

British journal of cancer 20160524 1


<h4>Background</h4>Studies have reported an increased risk of childhood leukaemia associated with living near high-voltage electric power transmission lines that extend to distances at which magnetic fields from lines are negligible. We conducted a large records-based case-control study of childhood leukaemia risk in the population living near power lines in California.<h4>Methods</h4>The study included 5788 childhood leukaemia and 3308 central nervous system (CNS) cancer cases (for comparison)  ...[more]

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