Autonomic effects of controlled fine particulate exposure in young healthy adults: effect modification by ozone.

Environ Health Perspect · 2009 · PMC2721874 · PMID 19672410

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approached significanceno p-value reported

This heterogeneity was statistically significant for the low-frequency component of HRV ( p = 0.02) and approached significance for the high-frequency component and time-domain measures of HRV.

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