Disparity in survival outcome after hematopoietic stem cell transplantation for hematologic malignancies according to area of primary residence.

We evaluated whether or not a patient's area of primary residence is an independent risk factor for overall survival (OS) after HLA-identical sibling or autologous hematopoietic stem cell transplantation (HSCT). This retrospective cohort study included patients who underwent autologous (n = 1739) or HLA-identical sibling (n = 267) HSCT to treat a hematologic malignancy between 1983 and 2004 at the University of Nebraska Medical Center. Primary area of residence, using the patient's zip code, was categorized as either urban or rural (including isolated, small rural, or large rural) according to the Rural Urban Commuting Area Codes (RUCA) classification system.