Before matching, SII was related to the maximum diameter of tumor, histological type, serum albumin (ALb), white blood cell (WBC), carbohydrate antigen 125 (CA125), and TNM stage (P < 0.05), but not related to the age, gender, smoking, drinking, carcinoembryonic antigen (CEA), CA199, and operation method (P > 0.05). This evidence concerns the gene CEACAM5 and neoplasm.