According to a Cox regression model, patients that had elevated tumor markers (CA19-9 > 30 μg/L or CEA > 4.7 μg/L) measured before the operation had a 19.1 times greater hazard ratio of dying in a 5-year time interval compared to those with measured tumor markers within normal range (95% CI: [5.16, 70.4]; p < 0.001). Here, CEACAM5 is linked to neoplasm.