Outcomes of hematologic malignancies after unrelated donor hematopoietic cell transplantation according to place of residence.

Loberiza FR, Lee SJ, Klein JP, Hassebroek A, Dehn JG, Frangoul HA, Hahn T, Hale G, Lazarus HM, LeMaistre CF, Maziarz RT, Rizzo JD, Majhail NS
Biol Blood Marrow Transplant. 2010 16 (3): 368-75

PMID: 19879951 · PMCID: PMC2822013 · DOI:10.1016/j.bbmt.2009.10.028

Studies suggest that patients who live in rural areas may have worse clinical outcomes compared with patients living in urban areas. We studied whether place of residence (rural versus urban) is associated with clinical outcomes of patients with leukemia or myelodysplastic syndrome (MDS) who received an unrelated donor hematopoietic cell transplantation (HCT). Patients' residential ZIP code at the time of transplant was used to determine rural or urban designation based on the Rural Urban Commuting Codes. The study included 6140 patients reported to the Center for International Blood and Marrow Transplant Research (CIBMTR) from 121 U.S. HCT centers: 1179 (19%) came from rural areas, whereas 4961 (81%) came from urban areas. Rural and urban patients were similar in patient-, disease-, and transplant-related characteristics aside from household income and distance traveled to the HCT center. After adjusting for income and other significant patient, disease, and transplant-related variables, the risk of overall mortality between patients residing in rural and urban areas were not statistically significant (relative risk 1.01, 95% confidence intervals 0.93-1.10, P = .74). Similar outcomes were noted for treatment-related mortality (TRM), disease-free survival (DFS), and relapse. Patient's income, derived from the U.S. Census and based on their residential ZIP code, was independently associated with outcomes. In summary, our study showed no differences in the clinical outcomes of patients from rural or urban areas after unrelated donor HCT.

Copyright (c) 2010 Elsevier Inc. All rights reserved.

MeSH Terms (27)

Adolescent Adult Child Child, Preschool Continental Population Groups Disease-Free Survival Female Graft Rejection Graft vs Host Disease Hematologic Neoplasms Hematopoietic Stem Cell Transplantation Humans Income Infant Kaplan-Meier Estimate Male Middle Aged Postoperative Complications Recurrence Retrospective Studies Risk Factors Rural Health Transplantation, Homologous Treatment Outcome United States Urban Health Young Adult

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