Fig. 3

Nomogram-predicted probabilities of 1-, 2-, and 3-years OS of patients with periampullary adenocarcinoma after pancreatoduodenectomy. The nomogram is used by adding up the points identified on the scale for three or four variables. The sum is located on the “Total points” scale, and a line is drawn downward to the survival axes to determine the probability of 1-, 2-, and 3-years OS