Table 4 Performance metrics for predicting revision of THA using Cox, Weibull parametric, flexible parametric, and random survival forest models
THA | |||
|---|---|---|---|
|  | c-index | Integrated calibration index (×100) | Integrated Index of Prediction Accuracy |
Cox | 0.591 (0.589, 0.594) | 0.27 (0.25, 0.3) | 0.029 (0.027, 0.03) |
Weibull | 0.591 (0.588, 0.594) | 0.29 (0.26, 0.31) | 0.028 (0.026, 0.029) |
Flexible parametric | 0.591 (0.588, 0.594) | 0.28 (0.25, 0.3) | 0.029 (0.027, 0.030) |
Random survival forest | 0.59 (0.587, 0.592) | 0.28 (0.25, 0.3) | 0.027 (0.025, 0.028) |