ALB and neoplasm: No significant differences were found in terms of age, sex, BMI, preoperative serum albumin and hemoglobin levels, preoperative chemotherapy, tumor location, UICC-TNM stage, lymphatic invasion, venous invasion, level of IMA ligation, simultaneous resection of other organs, height of the anastomosis, removal of crossing point where two staple lines intersected, size of the circular stapler, and placement of a pelvic drain.