Table 3 Heart rate variability during 4-h hemodialysis between short and long interdialytic interval in overall population.
HRV parameters | Total (N = 163) | P value* | |
|---|---|---|---|
Short interdialytic interval | Long interdialytic interval | ||
Mean NN (ms) | 869.8 ± 136.0 | 864.8 ± 132.8 | 0.369 |
SDNN (ms) | 49.1 ± 21.5 | 49.3 ± 23.7 | 0.946 |
SDANN (ms) | 40.0 ± 18.1 | 38.6 ± 19.9 | 0.714 |
rMSSD (ms) | 21.2 ± 16.8 | 22.3 ± 24.1 | 0.805 |
pNN50 (%) | 4.6 ± 10.1 | 4.2 ± 8.5 | 0.952 |
VLF (ms2) | 15.4 ± 8.3 | 15.6 ± 9.0 | 0.916 |
LF (ms2) | 9.9 ± 7.8 | 10.0 ± 8.0 | 0.756 |
LF normalized unit (n.u.) | 51.9 ± 10.8 | 52.5 ± 10.8 | 0.381 |
HF (ms2) | 8.6 ± 6.5 | 8.5 ± 6.1 | 0.960 |
HF normalized unit (n.u.) | 48.1 ± 10.8 | 47.5 ± 10.8 | 0.381 |
LF/HF ratio | 1.2 ± 0.5 | 1.2 ± 0.5 | 0.681 |