Donor Acceptance Stratified by Transplant Center Volume
Transplant centers were stratified into 3 terciles by the center’s donor acceptance rate, which included low-tier (<13.7%), mid-tier (13.7%-20.2%), and high-tier (>20.2%) (Table 3 ). Among the center terciles, mid-tier and high-tier programs were more likely to accept ECD organs. Specifically, donors over 40-years were most commonly accepted by mid-tier programs (41.7% vs 48.2% vs 43.8%, p<0.001). However, high-tier programs more frequently accepted donor offers with LVEF <60% (8.9% vs 14.4% vs 26.2%, p<0.001), HIV, HCV, and/or HBV (6.9% vs 11.4% vs 25.2%, p<0.001), donors with ≥50 offers (0.6% vs 1.4% vs 3.4%, p<0.001), and donors >500 miles from the accepting center (1.3% vs 2.6% vs 8.7%, p<0.001). Despite higher rates of acceptance in mid- and high-tier programs, in some categories, such as patients with LVEF <60%, low-tier programs had a higher volume of donor offers.