CEACAM5 and malignant colon neoplasm: It was demonstrated that post-CEA elevation was more frequent in patients with advanced age (P<0.001), right-side colon cancer (P=0.024), positive lymphovascular invasion (P=0.045), high grade of T (P=0.026) and N (P=0.023) stage, elevated NLR (P=0.016) and PLR (P<0.001), and positive preoperative CEA (P<0.001) and CA19-9 (P<0.001).