Cumulative incidence of aGVHD and cGVHD. The 100-day cumulative incidence of grade 2 to 4 aGVHD in the whole population (A) and according to donor age (B) (≤30 years, 30-50 years, and >50 years). The 100-day cumulative incidence of grade 3 to 4 aGVHD in the whole population (C) and according to donor age (D) (≤30 years, 30-50 years, and >50 years). Two-year cumulative incidence of moderate-to-severe cGVHD in the entire population (E) and according to donor age (F) (≤30 years, 30-50 years, and >50 years).