Fig. 3

Calibration of the nomogram in the CMU and TJMU validation sets. The x-axis represents nomogram-predicted survival probabilities, and the y-axis represents actual survival rates, with 95% confidential intervals measured by Kaplan–Meier analysis. All predictions lie within a 10% margin of error (within the dashed lines). a–c represents the 3-, 5-, and 10-year survival of the SYSUCC training set; d–f represents the 3-, 5-, and 10-year survival of the CMU validation set; and g–i represents the 3-, 5-, and 10-year survival of the TJMU validation set. SYSUCC Sun Yat-sen University Cancer Center; CMU Chinese Medical University; TJMU Tianjin Medical University