E-STAR Report Shows Referral Gains Offset by Slower Evaluations in Kidney Transplant Pathway

The E-STAR registry fills a long-standing gap by tracking patients from dialysis initiation through referral, evaluation start, and waitlisting rather than beginning at UNOS listing. Data from 37 transplant programs reveal wide center-level variation, with evaluation initiation ranging from 1.6% to 76.6% between 2022 and 2024. These early bottlenecks directly shape who reaches the national waitlist and how long they wait, patterns that standard OPTN data cannot quantify.

Contextual analysis shows the post-COVID rebound in referrals has not restored prior evaluation speed, suggesting capacity constraints or stricter medical criteria at some programs. Dialysis facility variation implies referral practices remain inconsistent even within the same ESRD networks. Equity implications are clear: centers serving higher proportions of Black and low-income patients show systematically longer intervals, consistent with earlier observational studies linking neighborhood poverty to transplant access.

Next steps require linking E-STAR metrics to center-level interventions such as standardized referral protocols and patient navigation. Without such linkage, national policy changes risk missing the precise steps where disparities originate.