Table 3.
Comparison the performance of HT-CAD in different two hospitals
| Accuracy(95% CI) | Sensitivity (95%C I) | Specificity (95% CI) | PPV | NPV | AUC | F1 (avg) | κ value | |
|---|---|---|---|---|---|---|---|---|
| Performance | ||||||||
| All | 0.892 (0.881-0.902) | 0.890 (0.868-0.911) | 0.895 (0.874-0.913) | 0.904 | 0.880 | 0.940 | 0.892 | 0.784 |
| Hospital A | 0.901 (0.890-0.911) | 0.898 (0.878-0.916) | 0.902 (0.884-0.0.919) | 0.892 | 0.892 | 0.949 | 0.886 | 0.798 |
| Hospital B | 0.887 (0.876-0.898) | 0.884 (0.866-0.903) | 0.891 (0.875-0.909) | 0.911 | 0.873 | 0.936 | 0.896 | 0.780 |
| P-value | ||||||||
| All vs Hospital A | 0.127 | 0.135 | 0.188 | — | — | — | — | — |
| All vs Hospital B | 0.314 | 0.265 | 0.377 | — | — | — | — | — |
| Hospital A vs Hospital B | 0.071 | 0.069 | 0.104 | — | — | — | — | — |
Abbreviations: AUC, area under the curve; κ value, Fleiss’s κ value; NPV, negative predictive value; PPV, positive predictive value.