A Nomogram to Predict Prognostic Value of Red Cell Distribution Width in Patients with Esophageal Cancer

Figure 3

ROC curve for CSS prediction. A ROC curve plots the sensitivity on the -axis against one minus the specificity on the -axis. The area under curve (AUC) was used as an estimation of diagnostic accuracy. The AUC was 0.684 (95% CI: 0.616–0.752, ). It demonstrated that RDW (cut-off point: 14.5%) predicts survival with a sensitivity of 44.3% and a specificity of 77.7%. Diagonal segments are produced by ties.