of borderline significancep = 0.08
Ozone was also associated with decreases in all three frequency-domain measures, although the coefficients were of borderline significance ( p = 0.08 to 0.10).
Ozone was also associated with decreases in all three frequency-domain measures, although the coefficients were of borderline significance ( p = 0.08 to 0.10).
There was no association between any pollutant variable and r-MSSD, except for a marginally significant but positive association with PM 10–2.5 averaged over the preceding 24 hr.