GSTM1 and blood coagulation disease: At 24 h after transfusion, Hct, PLT, and Hb were increased compared with those at admission and higher than those in the control group, while APTT, PT, TT, and FIB at 24 h after transfusion in the research group were lower than those at admission and those in the control group, suggesting that massive transfusion protocol for elderly patients with multiple injuries could improve platelet parameters, shorten coagulation time, and avoid the occurrence of coagulopathy.