Fig. 2

The calibration curves for predicting patient OS at (a) 1 year, (b) 3 years and (c) 5 years in the primary cohort and at (d) 1 year, (e) 3 years and (f) 5 years in the validation cohort. The nomogram model predicted OS is plotted on the x-axis, and the actual OS is plotted on the y-axis. Solid black line = performance of the nomogram model; closer alignment with the diagonal gray line represents a better estimation