Table 4 Heart rate variability parameters by time and frequency domain of patients according to the presence of CAN
Heart rate variability | CAN- | CAN+ | P-value |
|---|---|---|---|
Supine | Â | Â | Â |
HR | 72.8 ± 11.3 | 76.0 ± 11.4 | 0.114 |
SDNN (ms) | 28.4 ± 14.2 | 23.9 ± 14.8 | 0.081 |
RMSSD (ms) | 18.9 ± 15.7 | 16.8 ± 17.1 | 0.459 |
LF (nu) | 63.2 ± 20.5 | 61.9 ± 22.9 | 0.742 |
HF (nu) | 36.8 ± 20.5 | 38.1 ± 22.9 | 0.742 |
LF/HF | 3.4 ± 4.5 | 3.5 ± 4.9 | 0.865 |
Upright | Â | Â | Â |
HR | 83.5 ± 29.6 | 81.4 ± 18.4 | 0.665 |
SDNN (ms) | 25.2 ± 13.8 | 18.3 ± 10.3 | 0.003 |
RMSSD (ms) | 19.6 ± 18.3 | 14.5 ± 10.6 | 0.081 |
LF (nu) | 65.0 ± 20.1 | 59.4 ± 21.4 | 0.130 |
HF (nu) | 35.9 ± 21.0 | 39.5 ± 21.8 | 0.346 |
LF/HF | 3.9 ± 5.7 | 3.3 ± 4.8 | 0.466 |