Table 2 Change in serum creatinine before and after the diagnosis of AKI
Variables | Values |
|---|---|
Original cohort | |
Serum creatinine at ICU admission, mean ± SD | 1.63 ± 0.94 |
Serum creatinine at ICU admission, median (IQR) | 1.00 (0.70, 1.80) |
Serum creatinine at first AKI diagnosis, mean ± SD | 2.40 ± 1.04 |
Serum creatinine at first AKI diagnosis, median (IQR) | 1.70 (1.20–2.90) |
Serum creatinine at 48 h after AKI diagnosis, mean ± SD | 2.12 ± 1.02 |
Serum creatinine at 48 h after AKI diagnosis, median (IQR) | 1.50 (0.93–2.68) |
Positive changes of serum creatinine, n (%) | 1193 (22.4) |
Δserum creatinine, mean ± SD | 0.86 ± 0.73 |
Negative or static change of serum creatinine, n (%) | 4131 (77.6) |
Δserum creatinine, mean ± SD | -0.63 ± 0.51 |
Validation cohort | |
Serum creatinine at ICU admission, mean ± SD | 1.53 ± 0.52 |
Serum creatinine at ICU admission, median (IQR) | 1.08 (0.72, 1.90) |
Serum creatinine at first AKI diagnosis, mean ± SD | 2.74 ± 1.04 |
Serum creatinine at first AKI diagnosis, median (IQR) | 2.10 (1.38, 3.49) |
Serum creatinine at 48 h after AKI diagnosis, mean ± SD | 2.12 ± 1.02 |
Serum creatinine at 48 h after AKI diagnosis, median (IQR) | 1.50 (0.93, 2.68) |
Positive changes of serum creatinine, n (%) | 333 (14.3) |
Δserum creatinine, mean ± SD | 0.53 ± 0.42 |
Negative or static change of serum creatinine, n (%) | 1989 (85.7) |
Δserum creatinine, mean ± SD | -0.81 ± 0.67 |