Table 1.
Summary Statistics and Comparison of Baseline Characteristics by RRT Group.
| RRT Started |
|||||
|---|---|---|---|---|---|
| Covariates | Within 2 Days of ICU Admission, N = 98 |
Within 3-7 Days of ICU Admission, n = 42 |
Later Than 7 Days of ICU Admission, N = 36 |
No RRT, N = 289 |
P Value |
| Categorical variables | n (%) | n (%) | n (%) | n (%) | |
| Gender | |||||
| Female | 49 (50%) | 19 (45.2%) | 8 (22.2%) | 141 (48.8%) | .0219 |
| Male | 49 (50%) | 23 (54.8%) | 28 (77.8%) | 148 (51.2%) | |
| Race/ethnicity | |||||
| Black | 19 (19.4%) | 8 (19%) | 6 (16.7%) | 49 (17%) | .6444 |
| Other | 22 (22.4%) | 13 (31%) | 12 (33.3%) | 64 (22.1%) | |
| White | 57 (58.2%) | 21 (50%) | 18 (50%) | 176 (60.9%) | |
| Patient’s cancer type | |||||
| Adrenal | 0 (0%) | 0 (0%) | 1 (2.8%) | 1 (0.3%) | .0161 |
| Breast | 12 (12.2%) | 5 (11.9%) | 0 (0%) | 25 (8.7%) | |
| GI | 29 (29.6%) | 9 (21.4%) | 9 (25%) | 55 (19%) | |
| Genitourinary | 9 (9.2%) | 6 (14.3%) | 11 (30.6%) | 44 (15.2%) | |
| Gynecology | 7 (7.1%) | 3 (7.1%) | 3 (8.3%) | 30 (10.4%) | |
| Lung and head/neck | 18 (18.4%) | 10 (23.8%) | 5 (l3.9%) | 73 (25.3%) | |
| Pancreatic and Bil | 4 (4.1%) | 4 (9.5%) | 1 (2.8%) | 25 (8.7%) | |
| Sarcoma/melanoma | 12 (12.2%) | 3 (7.1%) | 2 (5.6%) | 19 (6.6%) | |
| Thyroid | 0 (0%) | 0 (0%) | 3 (8.3%) | 9 (3.1%) | |
| Unknown Primary | 7 (7.1%) | 2 (4.8%) | 1 (2.8%) | 8 (2.8%) | |
| Patient died in the hospital | |||||
| No | 24 (24.5%) | 11 (26.2%) | 11 (30.6%) | 143 (49.5%) | <.0001 |
| Yes | 74 (75.5%) | 31 (73.8%) | 25 (69.4%) | 146 (50.5%) | |
| Patient received supportive care while in hospital | |||||
| No | 98 (100%) | 42 (100%) | 36 (100%) | 288 (99.7%) | .8941 |
| Yes | 0 (0%) | 0 (0%) | 0 (0%) | 1 (0.3%) | |
| Patient diagnosed with peripheral vascular disease before hospital admission | |||||
| No | 98 (100%) | 42 (100%) | 34 (94.4%) | 280 (96.9%) | .1283 |
| Yes | 0 (0%) | 0 (0%) | 2 (5.6%) | 9 (3.1%) | |
| Continuous variables, mean ± SD | |||||
| Patient age at time of hospital admission | 59.21 ± 11.62 | 59.76 ± 13.11 | 59.28 ± l5.78 | 60.49 ± 13.57 | .8378 |
| Number of days patient was hospitalized | 14.46 ± 15.89 | 24.24 ± 21.34 | 45.50 ± 41.52 | 15.44 ± 17.39 | <.000l |
| Baseline serum albumin test | 2.66 ± 0.67 | 2.77 ± 0.57 | 2.92 ± 0.65 | 2.85 ± 0.68 | .0724 |
| Baseline creatinine | 3.24 ± 2.12 | 2.49 ± 2.05 | 1.70 ± 1.35 | 2.69 ± 2.47 | .0063 |
| GFR during first ICU admission | 30.37 ± 23.15 | 37.52 ± 27.10 | 72.53 ± 49.78 | 42.30 ± 35.79 | <.000l |
| ADM SOFA during first ICU admission | 11.43 ± 4.70 | 9.35 ± 3.91 | 8.00 ± 3.11 | 7.73 ± 3.86 | <.0001 |
| Max SOFA during first ICU admission | 16.29 ± 4.38 | 16.13 ± 4.05 | 13.34 ± 5.06 | 9.78 ± 4.36 | <.000l |
Abbreviations: GI, gastrointestinal; GFR, glomerular filtration rate; ICU, intensive care unit; RRT, renal replacement therapy; SD, standard error; SOFA, Sequential Organ Failure Assessment.