Table 1.
Baseline characteristics of the study population by procedure groups
| Amputated | Revascularized | |
| N = 3942 | N = 2046 | N= 1896 |
| Demographics | ||
| Age in years, mean ± SD | 69.4 ± 9.7 | 71.5 ± 8.1 |
| Male Gender, n (%) | 1148 (56) | 1097 (58) |
| Race, n (%) | ||
| Caucasians | 1333 (65) | 1464 (77) |
| African Americans | 630 (31) | 370(20) |
| Other | 83 (4) | 62 (3) |
| ESRD | ||
| Diabetes as cause of ESRD, n (%) | 1518 (74) | 1011 (53) |
| Dialysis Modality, n (%) | ||
| HD | 1875 (92) | 1777 (94) |
| PD | 171 (8) | 119 (6) |
| Comorbidity | ||
| Coronary disease, n (%) | 1077 (53) | 893 (47) |
| Congestive heart failure, n (%) | 1076 (53) | 934 (49) |
| Cerebrovascular disease, n (%) | 380 (19) | 289 (15) |
| Smoker, n (%) | 94 (5) | 138 (7) |
| Cancer, n (%) | 74 (4) | 91 (5) |
| Clinical Indications | ||
| Intermittent claudication | 6 (0.3) | 91 (4.8) |
| Resting pain | 13 (0.6) | 97 (5.1) |
| Ulcer | 31 (1.5) | 225 (11.9) |
| Gangrene | 1850 (90.4) | 755 (39.8) |
| Other/unknown | 146 (7.1) | 728 (38.4) |
| Nutrition | ||
| BMI, mean ± SD | 25.3 ± 5.6 | 24.7 ± 5.2 |
| Serum Albumin, mean ± SD | 3.0 ± 0.6 | 3.2 ± 0.6 |
| Functional Status | ||
| Require assistance to transfer, n (%) | 139 (7) | 30 (2) |
| Require assistance to ambulate, n (%) | 342 (17) | 113 (6) |
| Other | ||
| Hematocrit, mean ± SD | 27.8 ± 7.0 | 28.5 (6.8) |