Cumulative incidence estimates of GVHD and mortality. (A) Acute GVHD: grade 2 to 4 GVHD 38% (solid line); grade 4.3% (dotted line). (B) Transplantation-related mortality: 11%. (C) Disease-related mortality: 5.2% at 2 years; 20.5% at 5 years.