Pan-immune-inflammation value as a prognostic biomarker for colon cancer and its variation by primary tumor location

Figure 5 Construction and validation of a nomogram based on multivariate Cox regression analysis. A: The nomogram integrating vascular invasion, perineural invasion, stage, pan-immune-inflammation value, and carcinoembryonic antigen for the disease-free survival (DFS) prediction of patients with left-sided colon cancer; B: Calibration curves for predicting DFS at 3-year and 5-year time points in left-sided colon cancer patients. The x-axis indicates the predictive survival probabilities by the nomogram, while the y-axis indicates the actual survival probabilities; the 45° dotted line indicates ideal prediction; C: 1-, 3-, and 5-year area under the curves DFS. DFS: Disease-free survival; PIV: Pan-immune-inflammation value; CEA: Carcinoembryonic antigen; AUC: Area under the receiver operating characteristic curve.