Fig. 3

Calibration curves and decision curve analysis of the nomogram. Calibration curves for predicting survival at 1, 3, and 5 years in the training cohort (a-c) and validation cohort (d-f). The X-axis indicates the nomogram-predicted probability, and the y-axis indicates actual survival. Time-dependent decision curve analysis for the clinical benefit of the nomograms and the corresponding scope of application in the training set (g-i) and validation set (j-l). The grey solid line represents the assumption that all patients survive in first, third and fifth year. The black solid line represents the assumption that no patients survive in the first, third, and fifth year. Nomogram-d was constructed without serum lipid parameters, which only based on lymph node metastasis, tumor differentiation, radical cure and CA199