Fig. 5

Calibration curves for the predictive model. (A) Training cohort. (B) Validation cohort. The X-axis represents the predicted probability, and the Y-axis represents the actual occurrence probability. The diagonal dashed line labeled “Ideal” represents the ideal scenario where the predicted probabilities match the actual probabilities. The dashed line labeled “Apparent” represents the consistency between the predicted probabilities (calculated once based on the model) and the actual probabilities, while the solid line labeled “Bias-corrected” represents the result after bootstrapping the data used to construct the model