Results
extranodal extension
REGRESSION, RECURRENCE
Patients aged ≥55 years, extranodal extension (ENE), metastatic LN ratio (LNR) >0.5, and non–initial treatment were identified as potential risk factors for recurrence through LASSO regression and univariate and multivariate analyses. The receiver operating characteristic curve (ROC curve) showed high efficiency, with an area under the ROC curve (AUC) of 0.819 (95% confidence interval [CI], 0.729–0.909) and 0.818 (95% CI, 0.670–0.909) in the training and validation groups, respectively. The calibration curve indicated that the nomogram had a good consistency.