Conditioning was not significantly associated with TRM in multivariate analysis. However, patients in the BU group had increased 1.46 (95% C.I.: 1.15-1.85) relative risk for relapse, p=.002, compared with patients in the TBI group.
Abbreviations: TBI, total body irradiation; Bu, busulfan; N, number; HCT, hematopoietic cell transplantation; ALL, acute lymphoblastic leukemia