OS of the 51 patients with GI-GVHD. (A) The OS rate by GI-GVHD stage. (B) The OS rate by WHO performance status staging. (C) The OS rate by the concentration of calprotectin. (D) The OS rate by the concentration of α1-AT concentration. (E) The survival rate by the concentration of albumin. (F) The survival rate by GI-GVHD stage and calprotectin levels with 3 groups: (1) stage 1 and stage 2 with a normal concentration of calprotectin; (2) stage 2 with a high concentration of calprotectin and stage 3 with a normal concentration of calprotectin; (3) stage 3 with a high concentration of calprotectin.