Effects of air pollution on heart rate variability: the VA normative aging study.

Environ Health Perspect · 2005 · PMC1253756 · PMID 15743719

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only marginally significantno p-value reported

We observed a reduction in LF of 11.5% (95% CI, 0.4–21.3%) associated with 1 SD (13 ppb) increment in the 4-hr O 3 , which was similar in magnitude but only marginally significant with a 24-hr average.

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