Furtherly, the diagnostic test was performed between OCRC and CRC patients, the AUC of CXCL7 was 0.684 (95% CI: 0.629–0.735; P < 0.001; sensitivity: 62.82%, specificity: 65.38%; cutoff value: 1.70 ng/ml; Figures 2G–I). This evidence concerns the gene PPBP and colorectal carcinoma.