CEACAM5 and neoplasm: Multivariate analyses showed that CEA >10μg/L (HR: 1.673, 95% CI: 1.217-2.299; HR: 1.511, 95% CI: 1.075-2.125), CA 19-9 >39 U/L (HR: 1.665, 95% CI: 1.245-2.229; HR: 1.690, 95% CI: 1.257-2.272), multiple tumours (HR: 1.348, 95% CI: 1.019-1.782; HR: 1.580, 95% CI: 1.175-2.123), and adjacent organ invasion (HR: 2.054, 95% CI: 1.343-3.140; HR: 1.784, 95% CI: 1.059-3.005) were independent risk factors of OS and tumour recurrence.