ROC analysis indicated that the area under the curve (AUC) of CEACAM7, CNTN3, CXCL3, CXCL8, SLC1A1, SLC4A4, SLC16A9, and TIMP1 in UC (Figure 8(a)), CRA (Figure 8(b)), and CRC (Figure 8(c)) was greater than 0.7 (p < 0.01). Here, SLC16A9 is linked to colorectal carcinoma.