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BACKGROUND: The outcome after living donor renal transplantation is superior to that for deceased donor transplantation, but the results are not uniformly successful. The factors responsible for the variable outcome after living donor transplantation have not been well defined. METHODS: UK Transplant Registry data were analyzed to determine the outcomes of 3142 first adult kidney transplants from living donors (71% genetically related and 29% unrelated) performed between 2000 and 2007 inclusive. Kaplan-Meier survival estimates were determined, and factors that might be associated with graft and patient survival were analyzed using Cox proportional hazards regression modeling. RESULTS: Patient survival at 5 years was better for recipients of grafts from related than unrelated donors (97% vs. 93%, P=0.0002), but conversely graft survival was better in recipients of genetically unrelated grafts (93% vs. 89%, P=0.06). After adjustment for the factors found to influence graft and patient survival, these differences were no longer apparent. In contrast to the expectations, the degree of human leukocyte antigen-A, -B, and -DR mismatch did not influence graft survival. Increasing donor age (but not recipient age), recipient diabetes, and grafts from adult offspring were independently associated with poorer patient survival in the first 3 years after transplantation. Poorer graft survival was independently associated with donor age older than 59 years, and female recipients. CONCLUSIONS: Advanced donor age, but not human leukocyte antigen mismatch, is associated with poorer outcome after live donor kidney transplantation. However, the results of live donor transplantation remain superior to deceased donor kidney transplantation.

Original publication




Journal article



Publication Date





694 - 701


Adolescent, Adult, Age Factors, Family, Female, Graft Rejection, Graft Survival, HLA Antigens, Histocompatibility Testing, Humans, Kaplan-Meier Estimate, Kidney Transplantation, Living Donors, Male, Middle Aged, Proportional Hazards Models, Prospective Studies, Registries, Risk Assessment, Risk Factors, Sex Factors, Time Factors, Treatment Outcome, United Kingdom, Young Adult