Summary performance measures for the model and in internal validation (bootstrapping)
| Measure | Final prediction model | Bootstrap analysis Median value (range) | |
| Overall performance | Brier score | 0.15 | 0.14 (0.13–0.16) |
| Discrimination | AUC | 0.70 | 0.72 (0.67–0.76) |
| Calibration | Calibration intercept | 0.01 | 0.00 (−0.01 to 0.01) |
| Calibration slope | 0.98 | 0.98 (0.93–1.04) |
AUC, area under the receiver operating characteristic curve.