Total patients (n = 13,284) | Lowest KeGFR > 70 ml/min/1.73 m2 (n = 7,089) | Lowest KeGFR 45–70 ml/min/1.73 m2 (n = 3,420) | Lowest KeGFR 30–45 ml/min/1.73 m2 (n = 1,112) | Lowest KeGFR < 30 ml/min/1.73 m2 (n = 1,663) | p | |
---|---|---|---|---|---|---|
Age (years), mean ± SD | 63.3 ± 17.3 | 60.3 ± 17.3 | 66.8 ± 16.6 | 69.5 ± 15.2 | 64.6 ± 17.0 | <0.001 |
Male, n (%) | 7067 (53.2) | 3850 (54.3) | 1772 (51.8) | 596 (53.6) | 849 (51.0) | 0.196 |
Hypertension, n (%) | 4076 (30.7) | 2349 (33.1) | 1073 (31.4) | 311 (28.0) | 343 (20.6) | <0.001 |
Uncomplicated diabetes, n (%) | 2477 (18.6) | 1294 (18.2) | 676 (19.8) | 238 (21.4) | 269 (16.2) | 0.001 |
Complicated diabetes, n (%) | 604 (4.5) | 175 (2.5) | 208 (6.1) | 69 (6.2) | 152 (9.1) | <0.001 |
Obesity, n (%) | 205 (1.5) | 102 (1.4) | 54 (1.6) | 16 (1.4) | 32 (1.9) | 0.084 |
Congestive heart failure, n (%) | 2566 (19.3) | 1051 (14.8) | 762 (22.3) | 289 (26.0) | 464 (27.9) | <0.001 |
COPD, n (%) | 2054 (15.5) | 1045 (14.7) | 567 (16.6) | 190 (17.1) | 252 (15.1) | 0.087 |
Cardiac arrhythmia, n (%) | 2414 (18.2) | 1180 (16.6) | 672 (19.6) | 224 (20.1) | 338 (20.3) | <0.001 |
Liver disease, n (%) | 727 (5.5) | 334(4.7) | 155(4.5) | 82 (7.4) | 156 (9.4) | <0.001 |
Metastatic cancer, n (%) | 620 (4.7) | 333 (4.7) | 167 (4.9) | 39 (3.5) | 81 (4.9) | 0.197 |
Surgical patients, n (%) | 5275 (39.7) | 2746 (38.7) | 1512 (44.2) | 471 (42.4) | 546 (32.8) | <0.001 |
Sepsis, n (%) | 3964 (29.8) | 1666 (23.5) | 1084 (31.7) | 415 (37.3) | 799 (48.0) | <0.001 |
SAPS II on ICU admission, median (IQR) | 33 (24–41) | 29 (22–38) | 34 (27–43) | 38 (30–47) | 40 (31–49) | <0.001 |
SOFA on ICU admission, median (IQR) | 6 (3–9) | 5 (3–8) | 7 (3–9) | 8 (4–11) | 9 (5–12) | <0.001 |
Baseline eGFR* (ml/min), mean ± SD | 109.0 ± 33.9 | 129.0 ± 38.8 | 97.5 ± 29.9 | 80.9 ± 26.0 | 64.4 ± 34.7 | <0.001 |
Vasopressors, n (%) | 4793 (36.1) | 2035 (28.7) | 1377 (40.3) | 539 (48.5) | 842 (50.6) | <0.001 |
Mechanical ventilation, n (%) | 8484 (63.9) | 4022 (56.7) | 2359 (69.0) | 837 (75.3) | 1266 (76.1) | <0.001 |
Lowest KeGFR during first 7 days of ICU stay (ml/min), mean ± SD | 66.4 ± 29.1 | 88.2 ± 15.7 | 56.3 ± 7.2 | 34.5 ± 4.3 | 15.6 ± 8.1 | <0.001 |
ICU LOS (days), median (IQR) | 3.3 (2.1–6.1) | 2.8 (1.8–4.8) | 3.7 (2.3–6.9) | 4.3 (2.6–7.7) | 5.3(3.1–10.2) | <0.001 |
Hospital LOS (days), median (IQR) | 9 (6–15) | 8 (4–13) | 9 (6–16) | 11 (7–18) | 12 (8–21) | <0.001 |
ICU mortality, n (%) | 1,023 (7.7) | 275 (3.9) | 253 (7.4) | 134 (12.0) | 361 (22.7) | <0.001 |
Inhospital mortality, n (%) | 1,562 (11.8) | 499 (7.0) | 420 (12.2) | 180 (16.2) | 463 (27.8) | <0.001 |