MICA and acute graft versus host disease: A second group analyzed 452 patients that underwent matched unrelated (67.9% of patients) and related (31.6% of patients) allogeneic HCT and evidenced that the patients with the MICA-129 Met genotype had an increased probability of overall survival (HR = 0.77, P = 0.0445) and that the mortality specifically due to acute GVHD was reduced (HR = 0.57, P = 0.0400) (15).