Comparisons of cumulative incidences of severe day-100 nonhematologic toxicities among HCT recipients given nonablative versus ablative conditioning. Shown are CTC grades 3 to 5 toxicities in the following individual organ systems: (A) gastrointestinal, (B) hepatic (C) infection, (D) metabolic, (E) pulmonary, and (F) renal. Percentages of patients having organ-specific comorbidities before HCT are represented as open bars (□) for nonablative and as solid bars (▪) for ablative recipients.