Next, the results of univariate analysis showed that the factors associated with OS in CRC patients were age, gender, clinical stage, EGFR expression, VEGF expression, and infiltration level of CD8+ T cells and CD103+CD8+ TRMs (p < 0.05), whereas tumor location and MMR status were not (p > 0.05). The gene discussed is EGFR; the disease is colorectal carcinoma.