Albumin (>35 vs. ≤ 35 g/L), AFP (>50 vs. ≤ 50 ng/ml), and CA 19-9 (>37 vs. ≤ 37 U/ml) were categorized into normal and abnormal groups according to the standardized cut-off values for normal ranges; the platelet count was stratified into <100, 100–300, and >300 × 109/L; CEA was stratified into <2.5, 2.5–5.0, and >5.0 ng/ml; tumor size was stratified into <2.5, 2.5–5.0, and >5.0 cm; and tumor number was categorized into single, double, and multiple tumors. This evidence concerns the gene CEACAM5 and neoplasm.