Other baseline data, including BMI, neoadjuvant therapy, ASA category, smoking, alcohol consumption, history of abdominal surgery, preoperative intestinal obstruction, hypertension, diabetes, pulmonary insufficiency, preoperative hemoglobin, WBC, albumin, and CEA, as well as pathological data, including pathology type, differentiation, tumor type, and pTNM, were not significantly different between the two groups. This evidence concerns the gene CEACAM5 and diabetes mellitus.