Table 2 Performance of the classifiers
Classifiers | LR | SVM | |||||||
|---|---|---|---|---|---|---|---|---|---|
Cohort | AUC (95% CI) | Acc | Sen | Spe | AUC (95% CI) | Acc | Sen | Spe | P-value |
Training | 0.7793 (0.7094–0.8491) | 81.28% | 72.34% | 83.51% | 0.8298 (0.7675–0.8921) | 84.26% | 80.85% | 85.11% | 0.111 |
Internal | 0.8393 (0.7608–0.9178) | 80.00% | 90.48% | 77.38% | 0.8512 (0.7853–0.9171) | 79.05% | 95.24% | 75.00% | 0.655 |
External-1 | 0.8023 (0.7361–0.8686) | 79.53% | 81.40% | 79.07% | 0.8459 (0.7822–0.9097) | 86.51% | 81.40% | 87.79% | 0.219 |
External-2 | 0.7108 (0.6404–0.7811) | 71.37% | 70.59% | 71.57% | 0.7941 (0.7309–0.8573) | 80.00% | 78.43% | 80.39% | 0.005 |
All | 0.7716 (0.7352–0.808) | 77.53% | 76.54% | 77.78 | 0.8256 (0.7927–0.8586) | 82.84% | 82.10% | 83.02% | < 0.001 |