TABLE 3.
Predictive power of HRV and HR dynamics indices for post-AMI mortality (logistic regression analysis).
| Predictor | LVEF ≤35% |
LVEF >35% |
||||||
| Concordant,% | Discordant,% | Somers’ D | c-Statistic | Concordant,% | Discordant,% | Somers’ D | c-Statistic | |
| DC | 74.4 | 25.6 | 0.489 | 0.744 | 82.7 | 17.3 | 0.655 | 0.827 |
| SDNN | 75.6 | 24.4 | 0.512 | 0.756 | 77.1 | 22.9 | 0.542 | 0.771 |
| α1 | 70.0 | 30.0 | 0.399 | 0.700 | 74.7 | 25.3 | 0.493 | 0.747 |
| ULF | 74.1 | 25.9 | 0.481 | 0.741 | 77.7 | 22.3 | 0.553 | 0.777 |
| VLF | 75.4 | 24.6 | 0.508 | 0.754 | 80.9 | 19.1 | 0.618 | 0.809 |
| LF | 74.5 | 25.5 | 0.490 | 0.745 | 79.1 | 20.9 | 0.582 | 0.791 |
| Acv | 80.7 | 19.3 | 0.614 | 0.807 | 82.5 | 17.5 | 0.649 | 0.825 |
| λ25s | 53.5 | 46.5 | 0.070 | 0.535 | 74.9 | 25.1 | 0.497 | 0.749 |
| rMSSD | 56.5 | 43.5 | 0.130 | 0.565 | 73.3 | 26.7 | 0.465 | 0.733 |
| pNN50 | 56.6 | 43.4 | 0.133 | 0.566 | 73.0 | 27.0 | 0.461 | 0.730 |
| HF | 65.4 | 34.6 | 0.309 | 0.654 | 76.8 | 23.2 | 0.536 | 0.768 |
All classification models are adjusted for the effect of age. Boldface indicates the top five largest c-statistic values for LVEF ≥35% and LVEF >35%, respectively. Abbreviations are explained in the legend of Figure 1.