Table 3.
Predictive performance of different variables
| Variables | AUC (95% CI) | p-value | Cutoff | Sensitivity | Specificity | Comparison with DKI |
|---|---|---|---|---|---|---|
| f1 | 0.839 (0.738–0.913) | < 0.001 | 0.233 | 96.77% | 54.35% | Z = 2.360, p = 0.018 |
| f2 | 0.519 (0.402–0.634) | 0.784 | / | / | / | / |
| f3 | 0.733 (0.620–0.828) | < 0.001 | 0.305 | 77.42% | 65.22% | Z = 2.825, p = 0.005 |
| Dapp (× 10−3mm2/s) | 0.860 (0.762–0.929) | < 0.001 | 1.200 | 77.42% | 78.26% | Z = 1.657, p = 0.098 |
| Kapp | 0.874 (0.779–0.939) | < 0.001 | 0.616 | 83.87% | 82.61% | Z = 1.499, p = 0.134 |
| DWI/ADC (× 10−3mm2/s) | 0.771 (0.661–0.859) | < 0.001 | 1.400 | 93.55% | 52.17% | Z = 3.453, p < 0.001 |
| RSI | 0.842 (0.741–0.915) | < 0.001 | / | 96.77% | 56.52% | Z = 2.113, p = 0.035 |
| DKI | 0.908 (0.820–0.962) | < 0.001 | / | 87.10% | 86.96% | / |
DWI = ADC, RSI = f1 + f3, DKI = Dapp + Kapp
CI confidence interval