• Leyla R Herbst, Laura Bowles Zeiser, Jonathan Mitchell, Kieranjeet Nijhar, Vijay Perincherry, Julia I López, Dorry L Segev, Allan B Massie, Elizabeth King, and Andrew M Cameron.
• From the Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD (Herbst, Zeiser, Mitchell, Nijhar, López, Segev, Massie, King, Cameron).
• J. Am. Coll. Surg. 2022 Apr 1; 234 (4): 615623615-623.

BackgroundNondirected donor (NDD) kidney transplant (NDDKT) continues to improve organ access for waitlisted candidates. Although NDDs are becoming increasingly common, there has been no contemporary evaluation of NDD allograft use, and it is vital to understand sociodemographic, as well as center-level, use across the US.Study DesignUsing national data from the Scientific Registry for Transplant Recipients, this study characterized NDDs, NDDKT recipients, and center-level distribution of NDDKT. Directed donor and NDD characteristics were compared using Fisher's exact and Wilcoxon rank-sum tests for categorical and continuous variables, respectively. Multivariable logistic regression was used to identify characteristics associated with receiving NDDKT, and center distribution of NDDKT was assessed using the Gini coefficient.ResultsNDDKT increased from 1.4% (n = 154) of all living donor kidney transplants in 2010 to 6.5% (n = 338) in 2020. Compared with directed living donors, NDDs were older (median [IQR], 44 [33 to 54] vs 43 [33 to 52], p < 0.01), more often male (40.2% vs 36.7%, p < 0.001), and White (91.4% vs 69.5%, p < 0.001). White adult candidates were more likely to receive NDDKT compared with Black (adjusted odds ratio [aOR], 0.300.340.39, p < 0.001), Hispanic/Latino (aOR, 0.360.420.48, p < 0.001), and Other (aOR, 0.410.470.55, p < 0.001) candidates. Black pediatric candidates had lower odds of receiving NDDKT (aOR, 0.090.220.54, p = 0.02). The proportion of centers performing NDDKT has increased from 2010 to 2020 (Gini = 0.77 vs 0.68).ConclusionsAlthough more centers are performing NDDKT, racial disparities persist among NDDs and NDDKT recipients. Continued effort is needed to recruit living kidney donors and improve access to living donation for minority groups in the US. (J Am Coll Surg 2022;234:000-00. © 2022 by the American College of Surgeons).Copyright © 2022 by the American College of Surgeons. Published by Wolters Kluwer Health, Inc. All rights reserved.

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