Table 1.
Baseline clinical data and outcomes
| Non-AKI (n = 208, 61.4%) | AKI (n = 131, 38.6%) | P-value (vs. non-AKI) | |
|---|---|---|---|
| Age | 66 0.0 [53.3–74.0] | 66.0 [55.0–73.0] | 0.650 |
| Male, n (%) | 132 (63.5) | 91 (69.5) | 0.255 |
| Admission type, n (%) | |||
| Medical | 98 (47.1) | 66 (50.4) | 0.746 |
| Elective surgery | 80 (38.5) | 45 (34.4) | |
| Emergent surgery | 30 (14.4) | 20 (15.3) | |
| Reason of ICU admission, n (%) | |||
| Cardiac surgery | 66 (31.7) | 52 (39.7) | 0.160 |
| Neurosurgery | 16 (7.7) | 0 (0.0) | 0.0003 |
| Other surgery | 27 (13.0) | 16 (12.2) | 0.869 |
| Cardiology | 45 (21.6) | 25 (19.1) | 0.680 |
| Other medicine | 30 (14.4) | 29 (22.1) | 0.078 |
| Others | 24 (11.5) | 9 (6.9) | 0.190 |
| Location before ICU admission, n (%) | |||
| General ward | 126 (60.6) | 76 (58.0) | 0.896 |
| Emergency room | 71 (34.1) | 48 (36.6) | |
| Others | 11 (5.3) | 7 (5.3) | |
| Baseline Cre (mg/dL) | 0.78 [0.64–0.99] | 0.88 [0.65–1.05] | 0.105 |
| Baseline eGFR (mL/min/1.73 m2) | 68.1 [53.2–81.6] | 65.1 [48.9–80.5] | 0.3652 |
| eGFR < 30, n (%) | 6 (3.9) | 11 (12.2) | 0.014 |
| Unknown, n (%) | 54 (26.4) | 41 (31.3) | 0.334 |
| Cre at admission (mg/dL) | 0.78 [0.64–1.01] | 1.28 [0.94–1.98] | <0.0001 |
| Diabetes, n (%) | 57 (27.4) | 37 (28.2) | 0.866 |
| Contrast exposure preceding 48 h, n (%) | 76 (36.5) | 27 (20.6) | 0.002 |
| Mean blood pressure (mmHg) | 70.0 [66.7–77.3] | 68.0 [58.3–73.3] | 0.001 |
| APACHE II | 10.0 [7.0–13.0] | 15.0 [10.0–22.0] | <0.0001 |
| Sepsis, n (%) | 30 (14.4) | 36 (27.5) | 0.0031 |
| 14-day in-hospital mortality, n (%) | 2 (1.0) | 12 (9.2) | 0.0003 |
| ICU stay (day) | 3.0 [3.0–5.3] | 5.0 [3.0–9.0] | <0.0001 |
Cre, serum creatinine concentration; eGFR, estimated glomerular filtration rate. Values are presented as proportions or median [interquartile range].