Predictive model validation
prostate cancer
PROSTATE CANCER
The calibration plot, which used internal bootstrap sampling (n = 1000), indicated a high degree of consistency between the bias-corrected curve and the ideal curve (the 45-degree line) both in the training and validation sets, indicating that our nomogram accurately predicted the occurrence risk and demonstrated good calibration (Fig. 
Calibration curves of the predictive prostate cancer risk nomogram. The 
Decision curve analysis for the prostate cancer risk nomogram. The 