Figure 2.

Construction, assessment, and validation of the predictive model of CLNM for PTMC patients within the Bil group. (A) The nomograms for predicting CLNM risk in PTMC patients within the Bil group; (B) the ROC curve and AUC of the nomogram for predicting CLNM risk in PTMC patients within the Bil group; (C) the calibration curve of the nomogram for predicting CLNM risk in PTMC patients within the Bil group. Actual probability is plotted on the y-axis, and nomogram predicted probability on the x-axis. PTMC, papillary thyroid microcarcinoma; CLNM, central lymph node metastasis; TCI, thyroid capsular invasion; ROC, receiver operating characteristics.