Table 1.
Patient characteristics presented overall and by renal recovery statusa
| Overall (N = 170) | Non-recovered (N = 109) | Recovered (N = 61) | P-valueb | |
| Age (years) | 60.0 (50.0, 71.0) | 60.0 (50.0, 71.0) | 59.0 (50.0, 67.0) | 0.492 |
| Gender: male (%) | 96 (56.5) | 63 (57.8) | 33 (54.1) | 0.641 |
| Race | 0.105 | |||
| Caucasian (%) | 123 (72.4) | 82 (75.2) | 41 (67.2) | |
| African-American (%) | 31 (18.2) | 15 (13.8) | 16 (26.2) | |
| Other (%) | 16 (9.4) | 12 (11.0) | 4 (6.6) | |
| Primary reason for hospitalization | ||||
| Renal (%) | 16 (9.4) | 10 (9.2) | 6 (9.8) | 0.887 |
| Sepsis (%) | 10 (5.9) | 6 (5.5) | 4 (6.6) | 0.747 |
| Cardiac (%) | 64 (37.7) | 39 (35.8) | 25 (41.0) | 0.502 |
| Pulmonary (%) | 8 (4.7) | 3 (2.8) | 5 (8.2) | 0.108 |
| Liver (%) | 29 (17.1) | 25 (22.9) | 4 (6.6) | 0.007 |
| Oncologic (%) | 13 (7.7) | 9 (8.3) | 4 (6.6) | 0.689 |
| Other (%) | 34 (20.0) | 21 (19.3) | 13 (21.3) | 0.749 |
| Comorbidities | ||||
| ≥1 comorbidity (%) | 134 (78.8) | 93 (85.3) | 41 (67.2) | 0.006 |
| Diabetes mellitus (%) | 47 (27.7) | 28 (25.7) | 19 (31.2) | 0.445 |
| Vascular disease (%) | 26 (15.3) | 16 (14.7) | 10 (16.4) | 0.766 |
| Congestive heart failure (%) | 71 (41.8) | 47 (43.1) | 24 (39.3) | 0.632 |
| Liver cirrhosis (%) | 27 (15.9) | 24 (22.0) | 3 (4.9) | 0.004 |
| Cancer (%) | 31 (18.2) | 21 (19.3) | 10 (16.4) | 0.642 |
| RIFLE category | 0.465 | |||
| R (%) | 18 (10.6) | 11 (10.1) | 7 (11.5) | |
| I (%) | 21 (12.4) | 16 (14.7) | 5 (8.2) | |
| F (%) | 131 (77.1) | 82 (75.2) | 49 (80) | |
| Serum creatinine (mg/dL) | ||||
| Baseline | 1.0 (0.8, 1.5) | 1.1 (0.8, 1.5) | 1.0 (0.8, 1.3) | 0.410 |
| Dialysis initiation | 3.9 (2.9, 5.0) | 3.7 (2.7, 4.8) | 4.2 (2.7, 4.8) | 0.073 |
| BUN at initiation (mg/dL) | 74.5 (51.0, 94.0) | 77 (53, 94) | 71 (45, 91) | 0.276 |
| Admission hemoglobin (mg/dL) | 10.9 (9.4, 12.8) | 10.7 (9.4, 12.9) | 11.1 (9.5, 12.8) | 0.650 |
| Admission albumin (g/dL) | 3.3 (2.8, 3.8) | 3.2 (2.8, 3.5) | 3.5 (3.0, 3.8) | 0.022 |
| Consult time (days) | 0.0 (0.0, 2.0) | 1.0 (0.0, 3.0) | 0.0 (0.0, 1.0) | 0.066 |
| Length of ICU stay (days) | 8.0 (2.0, 22.0) | 8.0 (2.0, 22.0) | 9.0 (3.0, 23.0) | 0.869 |
| Modality: CRRT (%) | 103 (60.6) | 72 (66.1) | 31 (50.8) | 0.051 |
| Use of vasopressors (%) | 119 (70.0) | 84 (77.1) | 35 (57.4) | 0.007 |
| Use of mechanical ventilation (%) | 115 (67.7) | 79 (72.5) | 36 (59.0) | 0.072 |
| % Fluid overload at dialysis initiation | 7.5 (0.7, 14.8) | 9.3 (2.8, 17.9) | 3.5 (0.0, 11.1) | 0.004 |
| ≥10% overload (%) | 72 (42.4) | 53 (48.6) | 19 (31.1) | 0.027 |
a
Values are presented as median (interquartile range).
b
For comparisons between non-recovered and recovered groups.