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Table 2 Association between 24-hour ambient monitor and personal EC concentrations with different hrv measures (from Suh and Zanobetti[72])

From: Oxidative stress-induced telomeric erosion as a mechanism underlying airborne particulate matter-related cardiovascular disease

HRV measure Ambient (Central monitor) Personal monitor
  Change (%) 95% confidence interval Change (%) 95% confidence interval
SDNN -1.0 -3.7 to 1.7 -4.66 -7.99 to -1.22
RMSSD -3.6 -9.5 to 2.8 -10.97 -18.00 to -3.34
PNN50 -0.34 -10.55 to 11.04 -15.16 -26.33 to -2.29
HF -2.36 -11.67 to 7.92 -13.41 -23.95 to -1.41
LF/HF ratio 2.60 -1.89 to 7.29 6.22 0.15 to 12.64
  1. Results in boldface indicate statistical significance at the 95% confidence level.