After adjusting for age, sex, tumor site, tumor size, tumor differentiation, ASA classification, TNM stage, hemoglobin, and albumin, the risk of the severity of postoperative complications in the transfusion group was 3.368 times higher than that in the non-transfusion group (OR = 3.368, 95% CI, 1.146–9.901) (Figure 2). Here, ALB is linked to neoplasm.