ALB and neoplasm: After adjusting for age, sex, tumor site, tumor size, tumor differentiation, ASA classification, TNM stage, hemoglobin, and albumin, the risk of postoperative death in the transfusion group was 2.747 times higher than that in the non-transfusion group (HR = 2.747, 95% CI, 1.048–7.205) (Figure 4).