TUESDAY, Oct. 9, 2018 (HealthDay News) — Kidney transplant patients who are preemptively wait-listed have substantially fewer years of pretransplant dialysis than transplant recipients listed after dialysis onset, according to a study published online Aug. 21 in Clinical Transplantation.

Meera N. Harhay, M.D., from the Drexel University College of Medicine in Philadelphia, and colleagues retrospectively compared pretransplant dialysis durations among 65,385 adult U.S. kidney transplant recipients of deceased donor organs between the period before implementation of the new kidney transplant allocation system (KAS; Dec. 4, 2011, to Dec. 3, 2014) and the post-KAS period (Dec. 4, 2014, to Dec. 3, 2017).

The researchers found that preemptively listed recipients (21 percent) were more likely to be white (59 versus 34 percent) and have private insurance (64 versus 30 percent). Average adjusted pretransplant dialysis durations for preemptively listed recipients were less than two years in all racial groups in the pre- and post-KAS periods. Preemptively listed recipients experienced 3.85 fewer average years of pretransplant dialysis in the pre-KAS period and 4.53 fewer average years of pretransplant dialysis in the post-KAS period compared with recipients who were listed after starting dialysis.

“Efforts are needed to improve both socioeconomic and racial disparities in preemptive wait-listing,” the authors write.

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