Table 1 Baseline characteristics of included patients
Variables | Total (n = 1221) | AKI (n = 357) | Non-AKI (n = 864) | P value |
|---|---|---|---|---|
Age (years) | 59.7 ± 19.6 | 62.0 ± 19.8 | 58.8 ± 19.5 | 0.011 |
Sex (male, %) | 788 (64.5%) | 233 (65.3%) | 556 (64.2%) | 0.117 |
Charlson index (median, IQR) | 0 (0-2) | 1 (0-2) | 0 (0-2) | 0.0095 |
Primary Classification (n, %) | <0.001 | |||
Medical | 340 (27.8) | 111 (31.1) | 229 (26.5) | 0.104 |
Coronary | 152 (12.4) | 28 (8.0) | 124 (14.4) | 0.002 |
Post-cardiac surgery | 101 (8.0) | 22 (6.0) | 79 (9.0) | 0.085 |
Surgical | 628 (51.4) | 196 (54.9) | 432 (50.0) | 0.119 |
Fluid balance (ml)† | 1061 ± 789 | 1245 ± 782 | 984 ± 780 | <0.001 |
Saline 0.9% administration (ml)† | 983 ± 678 | 1052 ± 768 | 954 ± 650 | 0.023 |
Use of diuretics (n, %) | 408 (33.42) | 115 (32.21) | 293 (33.91) | 0.567 |
Use of MV (n; %) | 598 (49.0) | 224 (62.8) | 374 (43.3) | <0.001 |
Survivors (n; %) | 967 (79.2) | 260 (72.8) | 707 (81.8) | <0.001 |
Hospital LOS (days; median, IQR)‡ | 24 (16,35) | 29 (20,41) | 22 (15,33) | <0.001 |
ICU LOS (days; median, IQR) ‡ | 3 (2,7) | 4 (3,9) | 3 (2,6) | <0.001 |
Bicarbonate (mmol/l) | 23.9 ± 3.0 | 24.0 ± 3.2 | 23.9 ± 2.9 | 0.46 |
Cl0 (mmol/l) | 103.6 ±6.0 | 104.1 ± 7.3 | 103.4 ± 5.4 | 0.07 |
Clmean (mmol/l) | 103.7 ±4.9 | 104.3 ±5.8 | 103.4 ± 4.5 | 0.0047 |
Clmin (mmol/l) | 98.0 ± 5.8 | 97.2 ± 6.1 | 98.3 ± 5.6 | 0.002 |
Clmax (mmol/l) | 109.1 ± 6.6 | 111.8 ± 8.1 | 107.9 ±5.4 | <0.001 |