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Transplant Proc. 2010 Jul-Aug;42(6):2218-9. doi: 10.1016/j.transproceed.2010.05.032.

Kidney graft survival rates do not improve by era: the impact of the age factor.

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Renal Unit, Careggi University Hospital, Florence, Italy.


We performed this study to evaluate whether older ages of donors and recipients negatively affected long-term graft survival. We compared 5-year graft survival rates of 89 recipients transplanted between 1991 and 1995 (period A) versus 221 recipients transplanted between 1996 and 2000 (period B). Acute rejection rates and the number of donors and recipients >50 years of age were compared in the two periods. The 5-year graft survival rate in period B was 76.3% versus 82% in period A. In period B, the acute rejection incidence was 18% versus 40% in period A (P < .001). The overall 5-year graft survival was 86.2% for donors aged 21-50 years and 65.7% for donor's aged >50 years (P < .0001) in period A versus 84.1% and 68%, respectively, in period B (P = .0023). In period A, 23.6% of donors and 35.9% of recipients were >50 years old, versus 50.2% and 42.9%, respectively, in period B. The graft survival rate in period B was worse than in period A, although the acute rejection rate was lower. The older age of both donors and recipients in period B seemed to be an important cause of worse outcomes.

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