Figure 4

Nomogram and calibration curve for predicting OS at 12- and 24-month for oligometastatic EC patients. (A) Nomogram; The nomogram is used by adding the point identified on the points scale of each variable. The sum of points is located on the Total Points axis, and a line is drawn down to indicate the 12- and 24-month survival. (B) Calibration curve for 12-month OS; (C) calibration curve for 24-month OS. OS, overall survival; EC, esophageal cancer.