Center-Level Experience and Kidney Transplant Outcomes in HIV-Infected Recipients

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Excellent outcomes among HIV+ kidney transplant (KT) recipients have been reported by the NIH consortium, but it is unclear if experience with HIV+ KT is required to achieve these outcomes. We studied associations between experience measures and outcomes in 499 HIV+ recipients (SRTR data 2004–2011). Experience measures examined included: (1) center-level participation in the NIH consortium; (2) KT experiential learning curve; and (3) transplant era (2004–2007 vs. 2008–2011). There was no difference in outcomes among centers early in their experience (first 5 HIV+ KT) compared to centers having performed>6 HIV+ KT (GS adjusted hazard ratio [aHR]: 1.05, 95% CI: 0.68–1.61, p = 0.82; PS aHR: 0.93; 95% CI: 0.56–1.53, p = 0.76), and participation in the NIH-study was not associated with any better outcomes (GS aHR: 1.08, 95% CI: 0.71–1.65, p = 0.71; PS aHR: 1.13; 95% CI: 0.68–1.89, p = 0.63). Transplant era was strongly associated with outcomes; HIV+ KTs performed in 2008–2011 had 38% lower risk of graft loss (aHR: 0.62; 95% CI: 0.42–0.92, p = 0.02) and 41% lower risk of death (aHR: 0.59; 95% CI: 0.39–0.90, p = 0.01) than that in 2004–2007. Outcomes after HIV+ KT have improved over time, but center-level experience or consortium participation is not necessary to achieve excellent outcomes, supporting continued expansion of HIV+ KT in the US.

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