Fig. 1

Nomogram for predicting 1-, 3-, and 5-year OS rates in patients with advanced PBTC. The points for each variable can be estimated by plotting a vertical line upwards from the patient's variable values to the top axis marked as “points”. A vertical line is drawn downwards from the sum of all variable values on the "total points" axis to calculate 1-, 3-, and 5-year OS rates. OS: overall survival; PBTC: pancreatic body tail cancer