Table 1: Participant characteristics by AKI status.
Values are N (%) or mean ± SD. CABG, coronary artery bypass graft; eGFR, estimated glomerular filtration rate.
| Characteristic | Overall | AKI | No AKI | |
|---|---|---|---|---|
| (N = 294) | (N = 138) | (N = 156) | ||
| Age at time of surgery, y | 71 ± 10 | 71 ± 10 | 71 ± 10 | |
| Men | 208 (70.7) | 100 (72.5) | 108 (69.2) | |
| White race | 279 (94.9) | 130 (94.2) | 149 (95.5) | |
| Diabetes | 117 (39.8) | 59 (42.8) | 58 (37.2) | |
| Hypertension | 230 (78.2) | 116 (84.1) | 114 (73.1) | |
| Congestive heart failure | 73 (24.8) | 44 (31.9) | 29 (18.6) | |
| Preoperative serum creatinine, mg/dL | 1.11 ± 0.394 | 1.17 ± 0.404 | 1.06 ± 0.380 | |
| Preoperative eGFR, mL/min/1.73 m2 | 67.3 ± 20.0 | 64.7 ± 20.7 | 69.6 ± 19.1 | |
| Type of surgery | Elective | 243 (82.7) | 103 (74.6) | 140 (89.7) |
| Urgent | 51 (17.3) | 35 (25.4) | 16 (10.3) | |
| CABG valve use | 232 (78.9) | 104 (75.4) | 128 (82.1) | |