Prognostic value of a nomogram model for pancreatic cancer incorporating the systemic immune-inflammation and prognostic nutritional indices

Figure 5 Calibration curves of the nomogram prediction model in the training and external validation cohorts for predicting overall survival 1 year, 2 years, and 3 years after surgery. The horizontal axis represents the predicted probability of the model, and the vertical axis represents the actual probability. The higher the overlap between the predicted curve and the ideal curve, the better the consistency of the predicted model. A: The calibration curves of the nomogram prediction model in the training cohorts; B: The calibration curves of the nomogram prediction model in the external validation cohorts. OS: Overall survival.