In detail, the mean percentages (SD) of CD4+ cells were 58.03 (6.88) in CRC vs. 58.15 (6.32) in CRC-S and the mean percentages of CD8+ T cells were 17.42 (5.65) in CRC vs. 14.39 (4.14) in CRC-S. Here, CD4 is linked to colorectal carcinoma.