Table 2.
HRV parameters of all four groups in wakefulness.
| Non- RLS/PLMS (n = 61) | RLS (n =60) | P-value | Non- RLS/PLMS (n = 61) | PLMS (n =58) | P-value | Non- RLS/PLMS (n = 61) | RLS/PUMS (n = 54) | P-value | |
|---|---|---|---|---|---|---|---|---|---|
| NN (ms) | 931 ± 125 | 921 ± 174 | 0.511 | 931 ± 125 | 937 ± 155 | 0.918 | 931 ± 125 | 905 ± 145 | 0.309 |
| SDNN (ms) | 55.7 ± 30.6 | 54.5 ± 36.5 | 0.647 | 55.7 ± 30.6 | 43.5 ± 24.2 | 0.095 | 55.7 ± 30.6 | 54.4 ± 41.7 | 0.731 |
| HRV Power (ms2) | 4011 ± 4365 | 4268 ± 7917 | 0.647 | 4011 ± 4365 | 2460 ± 3014 | 0.094 | 4011 ± 4365 | 4654 ± 9215 | 0.731 |
| VLF (ms2) | 969 ± 1025 | 761 ± 785 | 0.248 | 969 ± 1025 | 542 ± 674 | 0.038* | 969 ± 1025 | 907 ± 1602 | 0.519 |
| LF (ms2) | 1069 ± 1305 | 919 ± 1277 | 0.481 | 1069 ± 1305 | 600 ± 763 | 0.064 | 1069 ± 1305 | 820 ± 1094 | 0.348 |
| HF (ms2) | 1448 ± 1700 | 1714 ± 3610 | 0.788 | 1448 ± 1700 | 955 ± 1465 | 0.111 | 1448 ± 1700 | 1439 ± 2306 | 0.524 |
NN=R to R interval length; SDNN=standard deviation of R to R interval lengths; HRV=heart rate variability; VLF=very low frequency; LF=low frequency; HF=high frequency
*
Significant after controlling for multiple testing using the Holm’s sequential Bonferroni19
Please note: analysis was performed with the log transformed data, however to improve the ease of understanding the data the means and standard deviations listed below are the actual values, not the log transformed values