Development and validation of the nomogram
extranodal extension
REGRESSION
A nomogram was established based on the results of the multivariate logistic regression. An ROC curve was drawn to evaluate the diagnostic effectiveness of the model (ROC curve Nomogram based on four variables, namely age ≥55 years, ENE, LNR, and non-initial treatment. LNR, metastatic LN ratio; ENE, extranodal extension.