Panel A: All Patients, All Regimens. Subjects who were an ABO major or bidirectional mismatch with their donor required longer to achieve independence of red cell transfusion, on average, as compared to ABO identical or minor mismatched transplants. (Logrank p = 0.005).
Panel B: PBSC Nonmyeloablative Regimen. For patients who received a PBSC nonmyeloablative transplant regimen, those who were an ABO major or bidirectional mismatch with their donor required 1 – 2 months longer to achieve independence of red cell transfusion, on average, as compared to ABO identical or minor mismatched transplants. (Logrank p = 0.004).
Data are displayed on a modified Kaplan-Meier plot in which RBC transfusion independence is defined as in Figure 1.