Fig 2: The PCA based on the immune-related signature (A), immune-related genes (B), differently expressed genes (C), and the entire gene expression profiles (D) between the high-risk group and low-risk group. The correlation of the immune-related signature with clinicopathological characteristics. SDC1 was associated with age (E) and lymph node metastasis (F). IGHE were associated with age (G). The risk score of our prognostic model was significantly associated with a higher tumor stage (H).