Table 3.
Demographic and clinical characteristics of patients according to the development of acute kidney injury defined by the KDIGO classification.
| KDIGO |
|||
|---|---|---|---|
| Characteristics | No AKI (n = 57) | AKI (n = 399) | p Value |
| Age (year) | 64.1 ± 17.4 | 64.1 ± 16.0 | .994 |
| Gender (Male) – n (%) | 35 (61.4) | 229 (57.4) | .566 |
| Race (Caucasian) – n (%) | 54 (94.7) | 379 (95.0) | .936 |
| Obesity – n (%) | 9 (15.7) | 116 (29.1) | .035 |
| Underweight – n (%) | 3 (5.3) | 6 (1.5) | .242 |
| Co-morbidities – n (%) | |||
| Hypertension | 30 (50.2) | 182 (45.6) | .320 |
| Diabetes | 15 (26.3) | 88 (22.1) | .472 |
| CVD | 14 (24.6) | 111 (27.8) | .606 |
| COPD | 5 (8.8) | 33 (8.3) | .898 |
| Cirrhosis | 1 (1.8) | 17 (4.3) | .363 |
| Neoplasia | 13 (22.8) | 96 (24.1) | .836 |
| Medical admission – n (%) | 31 (54.4) | 222 (55.6) | .859 |
| Infection source – n (%) | |||
| Abdominal | 19 (33.3) | 168 (42.1) | .208 |
| Respiratory | 16 (28.3) | 122 (30.6) | .700 |
| Kidney | 14 (24.6) | 43 (10.8) | .003 |
| Skin | 2 (3.5) | 32 (8.0) | .225 |
| Others | 6 (10.5) | 20 (5.0) | .093 |
| Unknown | 0 (0.0) | 14 (3.5) | .151 |
| SAPS II | 42.8 ± 15.6 | 50.4 ± 17.3 | .002 |
| Baseline SCr (mg/dl) | 1.4 ± 0.7 | 1.3 ± 0.6 | .185 |
| Hemoglobin (g/dl) | 10.0 ± 1.7 | 10.5 ± 2.0 | .078 |
| Serum albumin (g/dl) | 2.1 ± 0.6 | 1.9 ± 0.6 | .003 |
| Mechanical ventilation – n (%) | 41 (71.9) | 309 (77.4) | .357 |
| Vasopressors – n (%) | 26 (45.6) | 290 (72.7) | <.001 |
| RRT – n (%) | 108 (27.1) | ||
| LOS in hospital (days) | 39.5 ± 44.8 | 36.7 ± 38.6 | .625 |
| LOS in ICU (days) | 9.8 ± 10.3 | 10.0 ± 10.0 | .881 |
| ICU mortality – n (%) | 7 (12.3) | 101 (25.3) | .030 |
| Hospital mortality – n (%) | 10 (17.5) | 143 (87.5) | .006 |