| AKI patients | RIFLE risk | RIFLE injury | RIFLE failure | P- value |
---|---|---|---|---|---|
 | (n = 409) | (n = 226; 55.2%) | (n = 87; 21.3%) | (n = 96; 23.5%) |  |
Sex (male) | 61.1% (250) | 58.8% (133) | 57.5% (50) | 69.8% (67) | 0.12 |
Sex (female) | 38.9% (159) | 41.2% (93) | 42.5% (37) | 30.2% (29) | 0.13 |
Age (years) | 67.7 ± 9.8 | 67.3 ± 10.0 | 68.1 ± 10.4 | 68.1 ± 8.9 | 0.68 |
Hypertension | 67.5% (276) | 62.8% (142) | 69.0% (60) | 77.1% (74) | 0.042 |
Dyslipidemia | 44.9% (183) | 39.4% (89) | 46.0% (40) | 56.3% (54) | 0.02 |
Diabetes mellitus | 10.0% (41) | 7.5% (17) | 17.2% (15) | 9.4% (9) | 0.036 |
BMI (kg · m-2) | 27.9 ± 4.4 | 27.8 ± 4.3 | 28.2 ± 4.1 | 27.9 ± 5.3 | 0.77 |
Peripheral vascular disease | 15.4% (63) | 13.3% (30) | 14.9% (13) | 20.8% (20) | 0.22 |
sCr before surgery (mmol · L-1) | 101 ± 56 | 86 ± 31 | 91 ± 30 | 115 ± 48 | <0.001 |
Previous stroke | 8.3% (34) | 7.5% (17) | 10.3% (9) | 8.3% (8) | 0.72 |
COPD | 14.7% (60) | 14.2% (32) | 17.2% (15) | 13.5% (13) | 0.74 |
Active smokers | 13.7% (56) | 10.2% (23) | 19.5% (17) | 16.6% (16) | 0.43 |
Previous atrial fibrillation | 32.8% (134) | 31.4% (71) | 31.0% (27) | 37.5% (36) | 0.61 |
Previous myocardial infarction | 12.2% (50) | 11.5% (26) | 13.8% (12) | 12.5% (12) | 0.85 |
Recent myocardial infarction | 11.5% (47) | 8.8% (20) | 14.9% (13) | 14.6% (14) | 0.17 |
NYHA class III-IV | 14.9% (61) | 15.1% (34) | 14.9% (13) | 14.6% (14) | 0.82 |
On B-blockers | 35.9% (147) | 35.4% (80) | 41.4% (36) | 32.3% (31) | 0.42 |
On statins | 32.8% (134) | 29.2% (66) | 39.1% (34) | 35.4% (34) | 0.21 |
On aspirin | 36.7% (150) | 34.1% (77) | 41.4% (36) | 38.5% (37) | 0.44 |
On diuretics | 57.0% (233) | 52.7% (119) | 63.2% (55) | 61.5% (59) | 0.14 |
Hypertrophic cardiomyopathy | 29.3% (120) | 27.8% (63) | 27.5% (24) | 34.3% (33) | 0.37 |
Dilated cardiomyopathy | 22.5% (92) | 20.8% (47) | 25.3% (22) | 23.9% (23) | 0.65 |
LVEF (%) | 60.0 ± 12.2 | 60.8 ± 11.7 | 58.7 ± 13.7 | 60.7 ± 11.8 | 0.41 |
PAP (mmHg) | 48.0 ± 17.0 | 46.4 ± 16.9 | 51.9 ± 16.7 | 52.0 ± 16.9 | 0.07 |
Hemoglobin before surgery (g · dL-1) | 12.4 ± 1.9 | 12.7 ± 1.8 | 12.2 ± 1.8 | 12.1 ± 2.1 | 0.009 |
Platelet count before surgery (1 · nL-1) | 206 ± 76 | 206 ± 77 | 206 ± 75 | 205 ± 73 | 0.98 |
EuroSCORE | 7.7 ± 3.5 | 7.1 ± 3.0 | 7.9 ± 3.6 | 8.8 ± 4.0 | 0.028 |
Parsonnet score | 14.5 ± 9.3 | 13.1 ± 7.7 | 14.3 ± 7.8 | 18.5 ± 12.8 | <0.001 |
Past cardiac surgery | 15.6% (64) | 17.3% (39) | 11.5% (10) | 15.6% (15) | 0.45 |