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ABSTRACT: Background
Various mechanisms have been postulated to explain how electric fields emitted by high voltage overhead power lines, and the charged ions they produce, might be associated with possible adult cancer risk, but this has not previously been systematically explored in large scale epidemiological research.Methods
We investigated risks of adult cancers in relation to modelled air ion density (per cm3) within 600?m (focusing analysis on mouth, lung, respiratory), and calculated electric field within 25?m (focusing analysis on non-melanoma skin), of high voltage overhead power lines in England and Wales, 1974-2008.Results
With adjustment for age, sex, deprivation and rurality, odds ratios (OR) in the highest fifth of net air ion density (0.504-1) compared with the lowest (0-0.1879) ranged from 0.94 [95% confidence interval (CI) 0.82-1.08] for mouth cancers to 1.03 (95% CI 0.97-1.09) for respiratory system cancers, with no trends in risk. The pattern of cancer risk was similar using corona ion estimates from an alternative model proposed by others. For keratinocyte carcinoma, adjusted OR in the highest (1.06-4.11?kV/m) compared with the lowest (<0.70?kV/m) thirds of electric field strength was 1.23 (95% CI 0.65-2.34), with no trend in risk.Conclusions
Our results do not provide evidence to support hypotheses that air ion density or electric fields in the vicinity of power lines are associated with cancer risk in adults.
SUBMITTER: Toledano MB
PROVIDER: S-EPMC7158064 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Toledano Mireille B MB Shaddick Gavin G de Hoogh Kees K Fecht Daniela D Sterrantino Anna Freni AF Matthews James J Wright Matthew M Gulliver John J Elliott Paul P
International journal of epidemiology 20200401
<h4>Background</h4>Various mechanisms have been postulated to explain how electric fields emitted by high voltage overhead power lines, and the charged ions they produce, might be associated with possible adult cancer risk, but this has not previously been systematically explored in large scale epidemiological research.<h4>Methods</h4>We investigated risks of adult cancers in relation to modelled air ion density (per cm3) within 600 m (focusing analysis on mouth, lung, respiratory), and calculat ...[more]