GSTM1 and peritoneum cancer: The baseline patient characteristics of the 329 allogeneic and 44 autologous blood transfusion subjects showed significant differences (P < 0.05) in their sex, age, cytoreductive degree (CCR), peritoneal cancer index (PCI), intravenous chemotherapy, and 24-h Hb before surgery, which may directly affect the analysis results of this study.