Table 2.
Comparison of outcomes between the nonelderly and elderly patients with AKI†.
| Outcomes | Overall | Nonelderly | Elderly | RR (95%CI) | p |
|---|---|---|---|---|---|
| In-hospital mortality, n (%) | 113 (37.67) | 58 (40.85) | 55 (34.81) | 0.88 (0.69–1.11) | 0.34 |
| 28-day in-hospital mortality, n (%) | 84 (28.0) | 46 (32.4) | 38 (24.1) | 0.81 (0.64–1.04) | 0.14 |
| Requiring RRT, n (%) | 77 (25.7) | 35 (24.6) | 42 (26.6) | 1.06 (0.80–1.40) | 0.80 |
| 28-day in-hospital mortality and RRT requirement, n (%) | 172 (57.3) | 69 (48.6) | 73 (46.2) | 0.95 (0.75–1.20) | 0.77 |
| Time to death, days | 19 (12–29) | 17 (11–25) | 21 (14–33) | 0.11 | |
| Length of ICU stay, days | 6 (3–15) | 5 (2–10) | 9 (4–17) | 0.0005 | |
| Time to initiated RRT, days | 2 (1–3) | 2 (1–3) | 2 (1–4) | 0.90 | |
| Indication for RRT, n (%) | 0.30 | ||||
| Acidosis | 29 (37.7) | 17 (48.6) | 12 (28.6) | ||
| Fluid overload | 26 (33.8) | 8 (22.9) | 18 (42.9) | ||
| Uremia | 16 (20.7) | 8 (22.9) | 8 (19.0) | ||
| Electrolyte disturbances | 6 (7.8) | 2 (5.6) | 4 (9.5) |
Data are presented as median (interquartile range) or number (percentage). †The elderly were those aged ≥65 years; abbreviations: AKI, acute kidney injury; CI, confidence interval; ICU, intensive care unit; RR, relative risk; and RRT, renal replacement therapy.