Table 4.
Sensitivity, Specificity, and Predictive Value of ROC area of the HRV indices to assess the presence of CAD according to the patients’ age
| Variable/Cutoff | Sens | Sp | PPV | NPV | Area under ROC curve |
|---|---|---|---|---|---|
|
-ApEn ≤ 0.41 |
87% |
47% |
69% |
73% |
0.698 |
|
HF ≤ 198.19 (ms2) |
96% |
41% |
69% |
88% |
0.669 |
|
RMSSD ≤ 19.53 (ms) |
61% |
71% |
74% |
57% |
0.642 |
| NN50 ≤ 176.40 (count) | 91% | 41% | 68% | 78% | 0.625 |
Sens = sensitivity, Sp = specificity, PPV = positive predictive value, NPV = negative predictive value.