IJOTM 2008-6490 6 4 2015 10 17 Competitive Market Analysis of Transplant Centers and Discrepancy of Wait-Listing of Recipients for Kidney Transplantation 141 149 EN PS Cho Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. info@ijotm.com RF Saidi CJ Cutie DSC Ko 2015 10 17 Background: There are over 250 kidney transplant programs in the USA.Objective: To determine if highly competitive regions, defined as regions with a higher number of transplant centers, will approve and wait-list more end-stage renal disease (ESRD) candidates for transplant despite consistent incidence and prevalence of ESRD nationwide.Methods: ESRD Network and OPTN data completed in 2011 were obtained from all transplant centers including listing data, market saturation, market share, organs transplanted, and ESRD prevalence. Herfindahl- Hirschman Index (HHI) was used to measure the size of firms in relation to the industry to determine the amount of competition.Results: States were separated into 3 groups (HHI<1000 considered competitive; HHI 1000–1800 considered moderate competition; and HHI>1800 considered highly concentrated). The percentage of ESRD patients listed in competitive, moderate, and highly concentrated regions were 19.73%, 17.02%, and 13.75%, respectively. The ESRD listing difference between competitive versus highly concentrated was significant (p<0.05).Conclusion: When there is strong competition without a dominant center as defined by the HHI, the entire state tends to list more patients for transplant to drive up their own center’s market share. Our analysis of the available national data suggests a discrepancy in access for ESRD patient to transplantation due to transplant center competition.