Table 1.
The general characteristics of patients at intensive care unit admission and hospital mortality rates
| All patients | SIRS-positive | SIRS-negative | p value* | |
|---|---|---|---|---|
| N | 932 | 563 (60.4) | 369 (39.6) | |
| Age (SD) (years) | 66.2 (17.8) | 65.6 (17.7) | 67.1 (18) | 0.19 |
| Male | 520 (55.8) | 309 (54.9) | 211 (57.2) | 0.001 |
| SAPS 3 | 42 [33 - 53] | 45 [34 - 56] | 39 [31 - 50] | < 0.001 |
| Admission type | < 0.001 | |||
| Medical | 453 (48.6) | 306 (54.2) | 159 (43.1) | |
| Emergency surgery | 96 (10.3) | 57 (10.2) | 33 (9.0) | |
| Elective surgery | 383 (41.1) | 200 (35.6) | 177 (47.9) | |
| Admission source† | < 0.001 | |||
| Ward | 109 (11.7) | 79 (14) | 30 (8.1) | |
| Emergency room | 186 (20) | 113 (20.1) | 73 (19.8) | |
| Operating room | 442 (47.4) | 242 (43) | 200 (54.2) | |
| Intermediate care | 66 (7.1) | 47 (8.4) | 23 (6.3) | |
| Length of hospital stay before ICU admission (days) | 1 [0 - 2] | 1 [0 - 3] | 1 [0 - 2] | 0.012 |
| Non-oncohematological comorbidities | 0.50 | |||
| 0 | 730 (78.3) | 441 (78.4) | 300 (81.3) | |
| 1 | 160 (17.2) | 99 (17.5) | 55 (14.9) | |
| ≥ 2 | 42 (4.5) | 23 (4.1) | 14 (3.8) | |
| Cancer | 466 (50) | 289 (51.3) | 177 (48) | 0.10 |
| Infection at admission‡ | 183 (19.6) | 132 (23.4) | 50 (13.5) | < 0.001 |
| Mechanical ventilation | 198 (21.2) | 138 (24.5) | 60 (16.3) | 0.001 |
| Vasoactive drugs | 326 (35) | 221 (39.3) | 105 (28.5) | < 0.001 |
| Dialysis | 57 (6.1) | 39 (6.9) | 18 (4.9) | 0.15 |
| Hospital mortality | 125 (13.4) | 95 (16.9) | 30 (8.1) | < 0.001 |
SIRS - systemic inflammatory response syndrome; SD - standard deviation; SAPS 3 - Simplified Acute Physiology Score 3.
p value for the comparison between systemic inflammatory response syndrome-positive and systemic inflammatory response syndrome-negative groups;
13.8% of the patients were from other areas of the same hospital (e.g., interventional radiology room);
infection at admission was confirmed or suspected by attending physicians. Systemic inflammatory response syndrome-positive was defined as patients with two or more criteria for systemic inflammatory response syndrome. SIRS-negative was defined as patients with one or no criteria. Results are expressed as N (%) or the median [25th - 75th].