Table 1. Patient Characteristics.
| Characteristic | General Surgical Group, Duration of CRRT | P Value | Pretransplant Group, Duration of CRRT | P Value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| All (N = 53) |
1-3 d (n = 26) |
4-6 d (n = 15) |
≥7 d (n = 12) |
All (N = 55) |
1-3 d (n = 22) |
4-6 d (n = 11) |
≥7 d (n = 22) |
|||
| Age, mean (SD), y | 67.2 (13.0) | 67 (12.7) | 66.8 (16.5) | 67.3 (11.9) | .99 | 57.2 (9.9) | 57.2 (10.2) | 52.9 (11.2) | 59.3 (8.8) | .23 |
| White, No. (%) | 38 (71.7) | 18 (69.2) | 9 (60) | 11 (91.7) | .18 | 48 (87.3) | 19 (86.4) | 10 (90.9) | 19 (86.4 | .92 |
| Male, No. (%) | 29 (54.7) | 15 (57.7) | 8 (53.3) | 6 (50) | .90 | 35 (63.6) | 12 (54.5) | 8 (72.7) | 15 (68.2) | .50 |
| BMI, mean (SD) | 24.9 (5.5) | 23.4 (5.1) | 26 (6.6) | 26.9 (4.1) | .11 | 27.9 (6.3) | 29.2 (6.4) | 27.5 (8.3) | 26.9 (4.9) | .45 |
| APACHE IV score, mean (SD)a | 42.2 (31.2) | 36 (32.2) | 44.3 (30.1) | 52.9 (29.8) | .32 | 31.4 (24.5) | 33.4 (24.9) | 22.1 (24.6) | 34.2 (23.9) | .37 |
| History of CKD, No. (%) | 20 (37.7) | 11 (42.3) | 1 (6.7) | 8 (66.7) | .005 | 10 (18.2) | 4 (18.2) | 1 (9.1) | 5 (22.7) | .63 |
| History of IHD, No. (%) | 20 (37.7) | 9 (34.6) | 4 (26.7) | 7 (58.3) | .22 | 7 (12.7) | 2 (9.1) | 1 (9.1) | 4 (18.2) | .61 |
| IHD preceding CRRT in SICU, No. (%) | 7 (13.2) | 1 (3.8) | 3 (20) | 3 (25) | .13 | 7 (12.7) | 3 (13.6) | 2 (18.2) | 2 (9.1) | .75 |
| Mechanical ventilation, No. (%) | 50 (94.3) | 25 (96.1) | 14 (93.3) | 11 (91.7) | .84 | 53 (96.4) | 20 (90.9) | 11 (100) | 22 (100) | .21 |
| Use of vasopressors during CRRT, No. (%) | 45 (84.9) | 22 (84.6) | 12 (80) | 11 (91.7) | .79 | 35 (63.6) | 7 (31.8) | 10 (90.9) | 18 (81.8) | <.001 |
Abbreviations: APACHE IV, Acute Physiology and Chronic Health Evaluation version IV; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); CKD, chronic kidney disease; CRRT, continuous renal replacement therapy; IHD, intermittent hemodialysis; SICU, surgical intensive care unit.
a
Calculated using preexisting comorbidities, acute diagnosis, and variables related to acute physiology. Increases in the score are associated with increased risk of mortality (scores range from 0 to 286).