GSTM1 and anemia: Significant differences are observed regarding age, gender, pre-existing medical conditions, coagulopathy (Quick’ value ≤ 60% or INR ≥ 1.4 or PTT ≥ 40 s), pre-injury anticoagulation, anemia (Hb < 8 mg/dl), overall injury severity (ISS), head and abdominal injury as well as injury to the extremities, incidence of hemorrhagic shock and need for massive transfusion and need for catecholamines.