Table 1.
Study population characteristics, by recipient age
| Ages 18–39 (N=6,233) | Ages 40–49 (N=5,771) | Ages 50–64 (N=10,436) | Ages 65+ (N=4,807) | |
|---|---|---|---|---|
| Recipient characteristics | ||||
| Female (%) | 41.2 | 39.6 | 39.2 | 37.3 |
| Age (years, mean) | 32.2 | 45.3 | 57.2 | 69.8 |
| Race (%): | ||||
| White | 50.9 | 53.8 | 57.7 | 72.7 |
| Black | 40.4 | 38.5 | 34.3 | 21.2 |
| Other | 8.7 | 7.8 | 8.0 | 6.1 |
| BMI (mean) | 26.2 | 27.6 | 27.9 | 27.0 |
| Total comorbidities (mean) | 1.2 | 1.6 | 2.0 | 2.1 |
| History of cancer | 0.3 | 0.9 | 1.8 | 4.3 |
| Congestive heart failure | 6.9 | 9.6 | 15.9 | 18.1 |
| Cerebrovascular accident | 1.2 | 2.5 | 4.0 | 4.9 |
| Diabetic nephropathy | 14.2 | 28.1 | 45.0 | 42.7 |
| Drug abuse | 1.0 | 1.8 | 0.6 | 0.0 |
| History of arrhythmia | 0.6 | 0.9 | 1.6 | 3.6 |
| Hypertension | 76.0 | 81.9 | 83.2 | 83.9 |
| Ischemic heart disease | 1.0 | 4.2 | 11.4 | 18.2 |
| Myocardial infarction | 0.4 | 1.5 | 3.7 | 5.0 |
| Chronic pulmonary disease | 0.4 | 1.2 | 2.1 | 3.0 |
| Peripheral vascular disease | 1.3 | 3.1 | 5.9 | 6.9 |
| Current smoker | 5.4 | 6.6 | 5.2 | 2.2 |
| Years on dialysis pre-transplant | 3.7 | 4.0 | 4.0 | 3.3 |
| Transplant characteristics | ||||
| Transplant year (%): | ||||
| 2000 | 14.6 | 12.7 | 11.0 | 11.6 |
| 2001 | 15.7 | 15.6 | 14.1 | 12.8 |
| 2002 | 16.4 | 15.9 | 16.8 | 15.8 |
| 2003 | 17.1 | 17.4 | 17.7 | 17.3 |
| 2004 | 18.6 | 19.1 | 19.9 | 19.5 |
| 2005 | 17.6 | 19.2 | 20.4 | 23.0 |
| Live donor (%) | 27.9 | 18.7 | 17.2 | 18.3 |
| Extended criteria donor (%) | 5.3 | 9.4 | 16.9 | 27.1 |
| Cold ischemia time (hours, mean) | 15.4 | 16.6 | 16.8 | 16.6 |