Figure 5. Validation of the model by the internal validation set TCGA-HNSCC (n=199). (A) Distribution of 8-lncRNA-based signature scores, lncRNA expression levels and patient survival durations in the internal validation set. (B) Kaplan-Meier curves of OS based on the 8-lncRNA signature. (C) ROC curve analyses based on the 8-lncRNA signature. (D) ROC curves according to the nomogram and lncRNA signature score. (E) Calibration curves of the nomogram for the estimation of survival rates at 3 and 5 years. (F) Kaplan-Meier curves of OS according to the total risk score.