Cumulative incidence of acute GVHD according to statin treatment of donor and recipient restricted to recipients with cyclosporine-based postgrafting immunosuppression. (A) Grade 2-4 and (B) grade 3-4 acute GVHD. (R) and (D) indicate patient and donor, respectively. (+) and (−) indicate absence or presence, respectively, of statin treatment. P values are derived from log-rank test.