Table 5.
Errors, linearity and agreement of RR and HRV measurements from 24-h acquisitions.
| No. = 10 Subjects | RMSE | Slope Test (H0: Slope = 1) | Coefficient of Agreement |
|---|---|---|---|
| Mean ± std. | p Value | ||
| RR values | 5.80 ± 1.06 | 0.514 | 0.014 |
| NN/RR ratio | 0.004 ± 0.0005 | 0.088 | 0.008 |
| AVNN | 8.21 ± 0.53 | 0.243 | 0.019 |
| SDNN | 6.42 ± 0.46 | <0.001 | 0.173 |
| rMSSD | 2.01 ± 0.13 | <0.001 | 0.088 |
| pNN50 | 1.46 ± 0.11 | <0.001 | 0.174 |
| LF power | 120.33 ± 10.83 | 0.098 | 0.138 |
| HF power | 109.14 ± 21.31 | 0.085 | 0.111 |
| LF/HF ratio | 0.60 ± 0.17 | <0.001 | 0.259 |
| SD1 | 1.46 ± 0.08 | <0.001 | 0.091 |
| SD2 | 4.51 ± 2.88 | <0.001 | 0.171 |