Characteristic Group 1 Group 2 Group 3 Group 4 p
Number 15 28 71 67  
Donor age, mean ± SD (years) 32.5 ± 4.9 45.3 ± 2.8 55.0 ± 2.5 65.0 ± 4.0 <0.001
Pre-donation eGFR, mean ± SD (mL/min/1.73 m2) 90.2 ± 13.8 76.8 ± 15.8 77.2 ± 17.4 71.9 ± 11.9 <0.001
Recipient age, mean ± SD (years) 42.4 ± 11.8 33.4 ± 13.8 36.9 ± 14.1 43.4 ± 12.2 0.002
Table 2: Patient demographics in each group.