Skip to main content

Advertisement

Table 2 Heart rate variability analyses in time domain according to the presence of peripheral vascular disease

From: Cardiovascular autonomic neuropathy in type 2 diabetes mellitus patients with peripheral artery disease

  With PAD Without PAD P*
n 24 43 -
Mean RR 24-h (ms) 767 ± 79 776 ± 92 0.98
Mean RR day (ms) 652 ± 263 738 ± 145 0.55
Mean RR night (ms) 811 ± 99 841 ± 93 0.41
SDNN 24-h (ms) 87 ± 35 105 ± 27 0.009
SDNN day (ms) 75.7 ± 34.2 92 ± 30,7 0.001
SDNN night (ms) 82.2 ± 39.1 96 ± 33.5 0.002
SDANN 24-h (ms) 3.54 ± 6.33 3.95 ± 5.6 0.16
SDANN day (ms) 3.42 ± 6.43 3.81 ± 0.6.3 0.02
SDANN night (ms) 3.86 ± 7.08 5.16 ± 7.7 0.13
SDNNi 24-h (ms) 18.4 ± 11.4 21.3 ± 12.9 0.002
SDNNi day (ms) 17.6 ± 11.7 20.1 ± 12.1 0.001
SDNNi night (ms) 19.7 ± 11.7 81.9 ± 37.5 0.004
RMSSD 24-h(ms) 28.5 ± 11.8 38.3 ± 13.7 0.16
RMSSD day (ms) 27.3 ± 11.3 36.9 ± 13.8 0.21
RMSSD night (ms) 30.6 ± 14.2 42.2 ± 16.1 0.15
PNN50 24-h (%) 76.4 ± 29.3 87.8 ± 25.9 0.19
PNN50 day (%) 63.4 ± 29.9 76.7 ± 26.6 0.23
PNN50 night (%) 67.7 ± 31.5 73.0 ± 27.5 0.22
  1. Data were log transformed before analyses and then expressed as mean ± SD.
  2. PAD = peripheral arterial disease; SDNN = SD of the R-R intervals, SDNNi = mean of the SD of R-R intervals calculated in 5-min segments, SDANNi = SD of the averages of the R-R intervals calculated in 5-min segments; RMSSD = root mean square of successive differences of adjacent R-R intervals; (PNN50) = percentage of differences between adjacent R-R intervals >50 ms;
  3. * Student’s t-test.