Variable | All (N=3792) | No sAKI (n=1896) | sAKI (n=1896) | Absolute risk difference (95% CI) | P value |
Died | 430 (11.3) | 39 (2.1) | 391 (20.6) | 0.186 (0.168 to 0.204) | <0.0001 |
Hospital LOS | 8 (8–8) | 5 (5–5) | 14 (13–15) | <0.0001 | |
ICU days | 6 (6–7) | 3 (3–3) | 9 (9–10) | <0.0001 | |
Ventilator days | 11 (9–13) | 3 (2–5) | 14 (12–15) | <0.0001 |
AKI, acute kidney injury; ICU, intensive care unit; LOS, length of stay; sAKI, severe acute kidney injury.