The primary endpoint of this trial was disease free survival at three years post transplant. Secondary endpoints included overall survival, incidence of GvHD, graft failure, infections and other complications, and time to disease relapse. The covariates considered included age of recipient, disease risk status, interval between diagnosis and transplant, disease type, age and gender of donor, post-transplant chimerism, pre-transplant Karnofsky score, and other measures of performance status. An economic analysis was performed.