Fig. 2

Nomogram for predicting 1-, 2-, 3-years OS of patients

The nomogram is used by adding the points identified on the scale for 6 variables to achieve the total points, and a vertical line is drawn downward to the survival axes to determine the probability of 1-,2- and 3-years OS. Abbreviations: TNM Tumor-Node-Metastasis, LNR lymph node ratio, OS overall survival.