Table 3.
Treatment and patient outcome by acute kidney injury (AKI) status at intensive care unit (ICU) admission
| Treatment | All patients (N=361) |
Missing data (no. of patients) | AKI (n=114) |
No AKI (n=242) |
P value (AKI vs no AKI) |
| LOS in ICU, median (IQR) | 11.6 (5.7–19.5) | – | 13.5 (5.9–25.6) | 10.9 (5.7–19.0) | 0.125 |
| Mechanical ventilation | 293 (81.2%) | – | 99 (86.8%) | 192 (79.3%) | 0.057 |
| RRT | 29 (8.0%) | – | 16 (14.0%) | 13 (5.4%) | 0.006 |
| CRRT | 28 (7.8%) | – | 15 (13.2%) | 13 (5.4%) | 0.012 |
| Median days (IQR) | 9.0 (5.0–14.0) | – | 8.0 (5.0–12.0) | 11.5 (5.5–16.3) | 0.863 |
| IRRT | 7 (1.9%) | – | 6 (5.3%) | 0 (0.0%) | 0.001 |
| Median days (IQR) | 6.5 (5.0–7.5) | – | 6.5 (5.0–7.5) | – | – |
| Outcome | |||||
| Survival first 24 hours in ICU | 358 (99.2%) | – | 111 (97.4%) | 242 (100.0%) | 0.032 |
| Survival at hospital discharge | 295 (81.7%) | – | 80 (70.2%) | 210 (86.8%) | <0.000 |
| Survival at 30 days | 298 (82.5%) | – | 77 (67.5%) | 217 (89.7%) | <0.000 |
| Survival at 90 days | 280 (77.6%) | – | 70 (61.4%) | 206 (85.1%) | <0.000 |
CRRT, continuous renal replacement therapy; IRRT, intermittent renal replacement therapy; LOS, length of stay; RRT, renal replacement therapy.