Table 1.
Recipient and donor characteristics (categorical variables), stratified by median cold ischemia time
| Variable | n (% of total) | n CIT<17.55 hrs (%) | n CIT>=17.55 hrs (%) | |
|---|---|---|---|---|
| Total sample | 73714 (100%) | 36854 (50%) | 36860 (50%) | |
| Recipient characteristics | ||||
| Gender | ||||
| Female | 27942 (38%) | 13951 (50%) | 13991 (50%) | |
| Male | 45772 (62%) | 22903 (50%) | 22869 (50%) | |
| Education | ||||
| None | 504 (1%) | 267 (53%) | 237 (47%) | |
| Grade school (0–8) | 4628 (6%) | 2335 (50%) | 2293 (50%) | |
| High school (9–12) or GED | 29829 (40%) | 15177 (51%) | 14652 (49%) | |
| Attended college/technical school | 14124 (19%) | 7312 (52%) | 6812 (48%) | |
| Associate/bachelor degree | 7981 (11%) | 4117 (52%) | 3864 (48%) | |
| Post-college graduate degree | 3082 (4%) | 1579 (51%) | 1503 (49%) | |
| Unknown | 12337 (17%) | 5629 (46%) | 6708 (54%) | |
| Missing | 1229 (2%) | 438 (36%) | 791 (64%) | |
| Race | ||||
| Other | 1486 (2%) | 864 (58%) | 622 (42%) | |
| White | 31583 (43%) | 16065 (51%) | 15518 (49%) | |
| Black | 26289 (36%) | 12734 (48%) | 13555 (52%) | |
| Asian | 4489 (6%) | 2466 (55%) | 2023 (45%) | |
| Hispanic | 9867 (13%) | 4725 (48%) | 5142 (52%) | |
| Insurance | ||||
| Other | 566 (1%) | 223 (39%) | 343 (61%) | |
| Private | 19179 (26%) | 9742 (51%) | 9437 (49%) | |
| Public | 53969 (73%) | 26889 (50%) | 27080 (50%) | |
| Diabetes Type | ||||
| No | 47930 (65%) | 24114 (50%) | 23816 (50%) | |
| Type I | 1485 (2%) | 827 (56%) | 658 (44%) | |
| Type II | 8650 (12%) | 4683 (54%) | 3967 (46%) | |
| Other Type | 106 (0%) | 58 (55%) | 48 (45%) | |
| Unknown Type | 13743 (19%) | 6491 (47%) | 7252 (53%) | |
| Unknown | 665 (1%) | 281 (42%) | 384 (58%) | |
| Missing | 1135 (2%) | 400 (35%) | 735 (65%) | |
| Donor characteristics | ||||
| Gender | ||||
| Female | 30233 (41%) | 15053 (50%) | 15180 (50%) | |
| Male | 43481 (59%) | 21801 (50%) | 21680 (50%) | |
| Race | ||||
| Other | 725 (1%) | 365 (50%) | 360 (50%) | |
| White | 51888 (70%) | 26254 (51%) | 25634 (49%) | |
| Black | 9927 (13%) | 4776 (48%) | 5151 (52%) | |
| Asian | 1728 (2%) | 921 (53%) | 807 (47%) | |
| Hispanic | 9446 (13%) | 4538 (48%) | 4908 (52%) | |
| History of Hypertension | ||||
| None | 53549 (73%) | 27217 (51%) | 26332 (49%) | |
| Yes, 0–5 years | 9439 (13%) | 4682 (50%) | 4757 (50%) | |
| Yes, 6–10 years | 3227 (4%) | 1530 (47%) | 1697 (53%) | |
| Yes, >10 years | 3587 (5%) | 1629 (45%) | 1958 (55%) | |
| Yes, Unknown duration | 3189 (4%) | 1459 (46%) | 1730 (54%) | |
| Unknown | 643 (1%) | 308 (48%) | 335 (52%) | |
| Missing | 80 (0%) | 29 (36%) | 51 (64%) | |
| History of Diabetes | ||||
| None | 68822 (93%) | 34548 (50%) | 34274 (50%) | |
| Yes, 0–5 years | 2304 (3%) | 1136 (49%) | 1168 (51%) | |
| Yes, 6–10 years | 776 (1%) | 330 (43%) | 446 (57%) | |
| Yes, >10 years | 804 (1%) | 373 (46%) | 431 (54%) | |
| Yes, Unknown duration | 556 (1%) | 269 (48%) | 287 (52%) | |
| Unknown | 368 (0%) | 168 (46%) | 200 (54%) | |
| Missing | 84 (0%) | 30 (36%) | 54 (64%) | |
| Kidney pumped | ||||
| Not pumped | 57111 (77%) | 29709 (52%) | 27402 (48%) | |
| Pumped | 16333 (22%) | 7024 (43%) | 9309 (57%) | |
| Missing | 270 (0%) | 121 (45%) | 149 (55%) | |
| Cause of Death | ||||
| Anoxia | 11330 (15%) | 5718 (50%) | 5612 (50%) | |
| Stroke | 30358 (41%) | 14999 (49%) | 15359 (51%) | |
| Head trauma | 29691 (40%) | 15075 (51%) | 14616 (49%) | |
| CNS tumor | 541 (1%) | 264 (49%) | 277 (51%) | |
| Other | 1730 (2%) | 776 (45%) | 954 (55%) | |
| Missing | 64 (0%) | 22 (34%) | 42 (66%) | |
| Non-Heart Beating Donor | ||||
| Missing | 106 (0%) | 34 (32%) | 72 (68%) | |
| No | 67702 (92%) | 34070 (50%) | 33632 (50%) | |
| Yes | 5906 (8%) | 2750 (47%) | 3156 (53%) | |
CIT = cold ischemia time