Table 1.
Baseline Characteristics.
| Characteristics | LOS < 7 days (n = 46) | LOS ≥ 7 days (n = 44) | P value |
|---|---|---|---|
| Age, y, mean (±SD) | 51 (±11) | 58 (±29) | .090 |
| African American | 41 (89) | 38 (86) | .689 |
| Male | 24 (52) | 18 (41) | .284 |
| Weight, kg, median (25%-75% IQR) | 86 (71-101) | 91 (69-104) | .949 |
| Hypertension | 44 (96) | 40 (91) | .429 |
| Type 2 diabetes mellitus | 21 (46) | 22 (50) | .680 |
| Coronary artery disease | 10 (22) | 10 (23) | .910 |
| Peripheral vascular disease | 3 (7) | 3 (7) | > .999 |
| Human immunodeficiency virus | 4 (9) | 0 | .117 |
| History of transplant | 4 (9) | 3 (7) | > .999 |
| Systemic lupus erythematosus | 5 (11) | 2 (5) | .435 |
| History of cancer | 1 (2) | 2 (5) | .612 |
| History of peritonitis within 12 months | 15 (33) | 12 (27) | .581 |
| Immunosuppression | 6 (13) | 2 (5) | .267 |
| SIRS on admission | 16 (35) | 11 (25) | .311 |
| White blood cell count on admission, mean (±SD) | 11 (±7) | 10 (±7) | .897 |
| Heart rate on admission, mean (±SD) | 92 (±24) | 92 (±20) | .840 |
| Temperature on admission, mean (±SD) | 36.9 (±0.6) | 36.8 (±0.5) | .740 |
| Respiratory rate on admission, mean (±SD) | 18 (±2) | 18 (±3) | .761 |
Note. All data reported as n (%) unless otherwise noted. LOS = length of stay; IQR = interquartile range; SIRS = systemic inflammatory response syndrome.