CEACAM5 and neoplasm: A scoring system was designed based on OR values of the above factors as shown in Table 4, which included age≥40y (aOR 7.402, 95% CI 2.688-25.003), elevated serum CEA (aOR 9.142, 95% CI 2.627-23.617), tumor size in US<12 cm (aOR 3.789, 95% CI 1.298-34.757), presence of ascites in CT (aOR 4.442, 95% CI 0.475-11.293), multiple nodularity in CT(aOR 6.603, 95% CI 0.499-11.514), calcification in CT (aOR 5.347, 95% CI 1.204-89.433), positive occult blood in the stool (aOR 2.208, 95% CI 0.265-5.432) and bilateral ovarian involvement during surgery (aOR 5.474, 95% CI 0.882-8.476).