Table 2.
Baseline characteristics of octogenarians based on acute kidney injury status
| Variable | AKI (+) | AKI (−) | P value |
|---|---|---|---|
| Age (mean ± SD) | 85.9 (1.8) | 85.8 (1.8) | 0.93 |
| Diabetes mellitus | 35 (16.2%) | 80 (16.0%) | 0.95 |
| Hypertension | 106 (21.2%) | 19 (8.8%) | 0.001 |
| Coronary artery disease | 34 (15.7%) | 77 (15.4%) | 0.92 |
| Congestive heart failure | 24 (11.1%) | 25 (5.0%) | 0.003 |
| Cerebral vascular accident | 21 (9.7%) | 50 (10.0%) | 0.90 |
| Peripheral vascular disease | 38 (17.6%) | 102 (20.4%) | 0.38 |
| Cancer | 9 (4.2%) | 25 (5.0%) | 0.62 |
| Angiotensin converting enzyme inhibitor | 66 (30.6%) | 125 (25.1%) | 0.12 |
| Angiotensin receptor blockers | 42 (19.4%) | 68 (13.6%) | 0.04 |
| Non-steroidal anti-inflammatory drugs | 12 (5.6%) | 8 (1.6%) | 0.003 |
| Contrast media exposure | 71 (32.9%) | 82 (16.4%) | 0.001 |
| Baseline creatinine (mean ± SD) | 133.9 (95.8) | 119.4 (109.3) | 0.10 |
AKI acute kidney injury; SD standard deviation