Nomogram to predict permanent stoma in rectal cancer patients after sphincter-saving surgery

Figure 3 The nomogram calibration plot demonstrated high reliability. A: The area under the receiver operating characteristic curve for the nomogram was 0.903 (95%CI: 0.851–0.955); B: In the calibration curve, the predicted probability of stoma is plotted on the x-axis, while the actual probability of stoma is plotted on the y-axis. The dotted line represents an ideal nomogram, and the solid blue line represents the current nomogram.