CD8A and neoplasm: We investigated the correlation between the degree of CD8 + T-cell infiltration and clinicopathological features, revealing that the MID group was associated with an age < 67 years (p = 0.0235), a lower T stage (p = 0.0059), a lower N stage (p = 0.0072) and a lower Tumor, Node, Metastasis (TNM) stage (p = 0.0006) (Table S1).