Fig. 4

Circulating CGRP levels were predictive of LNM in OSCC patients. A Plasma CGRP levels in OSCC patients (n = 70) and healthy donors (n = 60), as analyzed by ELISA. B High CGRP levels were correlated with LNM, PNI, but not advanced T stage(T3/T4) in OSCC patients. C The combination of preoperative Tstage and plasma CGRP levels was calculated by multivariant logistic regression and yielded an AUC value of 0.8590 to predict LNM in OSCC patients