Table 2.

Characteristics of kidney allografts, by DSA categories defined by waiting time for a kidney transplant

CharacteristicTotalWaiting TimeP Value
Short (0–180 d)Medium (181–270 d)Long (>270 d)
High-quality kidneys14967 (100)5381 (36)4497 (30)5089 (34)
Ratio of high-quality kidneys to pediatric candidates3.95.93.83.1<0.001
Donor blood type<0.001
 O7035 (47)2418 (45)2095 (47)2522 (49)
 B1625 (11)579 (11)493 (11)553 (11)
 A5984 (40)2245 (42)1825 (40)1914 (38)
 AB323 (2)139 (2)84 (2)100 (2)
All diversions from pediatric pool6374 (43)2316 (43)1799 (40)2259 (44)<0.001
 Diverted for MOTs3617 (57)1333 (58)987 (55)1297 (57)
 Diverted for zero antigen mismatch1925 (30)691 (30)519 (29)715 (32)
 Diverted for PRA>80832 (13)292 (12)293 (16)247 (11)
Local diversions from pediatric pool4299 (29)1474 (27)1250 (28)1575 (31)<0.001
 Diverted for MOTs3218 (75)1140 (77)895 (72)1183 (75)
 Diverted for zero antigen mismatch336 (8)82 (6)81 (6)173 (11)
 Diverted for PRA>80745 (17)252 (17)274 (22)219 (14)
Ratio of high-quality kidneys (minus all diversions) to pediatric candidates2.32.62.31.7<0.001
  • Data are presented as n (%) unless otherwise indicated. Median waiting times were estimated using the Kaplan–Meier method among all wait-listed candidates in the DSA, including individuals not transplanted.