In detail, to distinguish the CRC group from the HC group, the area under the curve (AUC) was 0.9158 (95% confidence interval [CI], 0.7842 to 1) for ITGAM, 0.8681 (95% CI, 0.7448 to 0.9915) for ITGB3, 0.8498 (95% CI, 0.7064 to 0.9932) for EPS8, and 0.8242 (95% CI, 0.6753 to 0.9731) for CD9. The gene discussed is CD9; the disease is colorectal carcinoma.