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Blood, 15 November 2007, Vol. 110, No. 10, pp. 3784-3792. Prepublished online as a Blood First Edition Paper on August 1, 2007; DOI 10.1182/blood-2007-03-082933.
TRANSPLANTATION Late mortality after allogeneic hematopoietic cell transplantation and functional status of long-term survivors: report from the Bone Marrow Transplant Survivor Study1 Population Sciences, City of Hope National Medical Center, Duarte, CA; 2 Blood and Marrow Transplantation, University of Minnesota, Minneapolis; 3 Pediatrics, University of Michigan, Ann Arbor; 4 Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA; and 5 Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, TN We assessed late mortality in 1479 individuals who had survived 2 or more years after allogeneic hematopoietic cell transplantation (HCT). Median age at HCT was 25.9 years and median length of follow-up was 9.5 years. The conditional survival probability at 15 years from HCT was 80.2% (SE = 1.9%) for those who were disease-free at entry into the cohort, and the relative mortality was 9.9 (95% confidence interval, 8.7-11.2). Relative mortality decreased with time from HCT, but remained significantly elevated at 15 years after HCT (standardized mortality ratio = 2.2). Relapse of primary disease (29%) and chronic graft-versus-host disease (cGVHD: 22%) were the leading causes of premature death. Nonrelapse-related mortality was increased among patients older than 18 years at HCT (18-45 years: relative risk [RR] = 1.7; 46+ years: RR = 3.7) and among those with cGVHD (RR = 2.7), and was lower among patients who received methotrexate for GVHD prophylaxis (RR = 0.5). HCT survivors were more likely to report difficulty in holding jobs (odds ratio [OR] = 13.9), and in obtaining health (OR = 7.1) or life (OR = 9.9) insurance compared with siblings. This study demonstrates that mortality rates remain twice as high as that of the general population among 15-year survivors of HCT, and that the survivors face challenges affecting their health and well-being.
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