Relationship between pre-HCT MRD levels, as determined by multiparameter flow cytometry, and post-HCT outcome for AML patients in morphologic remission. Estimates of OS (A), DFS (B), cumulative incidence of relapse (C), and cumulative incidence of NRM (D) after myeloablative allogeneic HCT for AML in complete morphologic remission, shown individually for patients without flow cytometric evidence of MRD (MRD^neg; n = 199; black solid line), low-level MRD (≤0.1%; n = 14; gray solid line), intermediate-level MRD (>0.1%-1%; n = 24; gray long-dashed line), or high-level MRD (>1%; n = 16; gray short-dashed line).