Fig 1.

Overall survival (OS). (A) Calibration plot of OS at 5 years. Nomogram-predicted OS is plotted on the x-axis, with observed OS on the y-axis. Dashed lines along the 45-degree line through the origin point represent the perfect calibration models in which the predicted probabilities are identical to the actual probabilities. (B) Nomogram for predicting probability of OS at 2 and 5 years. The presence or absence of each clinical characteristic indicates a certain number of points. Number of points for each clinical characteristic is on the top row. For each characteristic, the absence is assigned zero points. The presence of characteristics is associated with number of points. The points for each characteristic are summed together to generate a total-points score. The total points correspond to respective 2-year and 5-year OS probabilities. (C) Predicted 2-year (thick dark line with short dashed 95% CIs) and 5-year (thin dark line with long dashed 95% CIs) OS probability on the basis of nomogram total points.