Table 2. Demographics and Baseline Characteristics.
| Variable | Full Cohort | Hypertension Sub-Cohort | Diabetes Sub-Cohort |
| Sample | 9593 | 6196 | |
| Age | 70 (60–78) | 71 (61–79) | 71 (61–79) |
| Men, n(%) | 10667 (97%) | 9375 (98%) | 6066 (98%) |
| White, n(%) | 9615 (88%) | 8409 (88%) | 5477 (88%) |
| Diabetes mellitus, n(%) | 6196 (57%) | 5806 (61%) | 6196 (100%) |
| Hypertension, n(%) | 9593 (88%) | 9593 (100%) | 5806 (94%) |
| Coronary artery disease, n(%) | 6385 (58%) | 5993 (62%) | 4164 (67%) |
| Congestive heart failure, n(%) | 3711 (34%) | 3505 (37%) | 2580 (42%) |
| Peripheral vascular disease, n(%) | 2351 (21%) | 2241 (23%) | 1670 (27%) |
| Chronic Kidney Disease, n(%) | |||
| CKD IIIa (eGFR 45–59 mL/min/1.73 m2) | 2703 (25%) | 2511 (26%) | 1657 (27%) |
| CKD IIIb (eGFR 30–44 mL/min/1.73 m2) | 1772 (16%) | 1672 (17%) | 1204 (19%) |
| CKD IV (eGFR 15–29 mL/min/1.73 m2) | 661 (6%) | 627 (7%) | 449 (7%) |
| Median [IQR] Baseline Creatinine (mg/dl) | 1.25 (1.02–1.58) | 1.30 (1.05–1.60) | 1.30 (1.07–1.66) |
| Median baseline estimated GFR, [IQR] mL/min/1.73 m2 | 62 (47–79) | 60 (46–76) | 58 (44–75) |
| Median Length of Stay, [IQR], Days | 4.9 (2.8–8.6) | 4.9 (2.8–8.3) | 4.9 (2.8–8.6) |
Continuous variables presented as median (interquartile range). GFR = glomerular filtration rate.