Five-year survival estimates after allogeneic hematopoietic stem cell transplantation. Shown are survival estimates (top row) and 5-year event-free survival estimates (bottom row) according to disease stage (left panels indicate early disease stages; right panels, advanced disease stages) after allogeneic hematopoietic stem cell transplantation from HLA-identical donors (dotted line), HLA class I–disparate, inhibitory KIR ligand–compatible donors (dashed line), and HLA class I–disparate, inhibitory KIR ligand–incompatible donors (solid line). All differences between the 3 study groups were not significant