Table 1. Study population characteristics by infection status (N=2 119).
| Characteristics |
Confirmed
or suspected infection (n=1 190), n(%)* |
No confirmed
or suspected infection (n=929), n(%)* |
| Age (years), mean (SD) | 40.7 (15.9) | 37.7 (15.6) |
| Female gender | 570 (47.9) | 378 (40.7) |
| Black race | 1 142 (96.0) | 869 (93.5) |
| Referring specialty | ||
| Surgical | 875 (73.5) | 684 (73.6) |
| Medical | 287 (24.1) | 217 (23.4) |
| Unknown | 28 (2.4) | 28 (3.0) |
| Pre-ICU hospital LOS, median days (IQR) | 1 (0 - 3) | 0 (0 - 1) |
| Invasive mechanical ventilation at time of ICU admission | 710 (59.7) | 518 (55.8) |
| HIV-positive | 321 (27.0) | 175 (18.8) |
| On HAART | 245 (76.3) | 143 (81.7) |
| qSOFA score at ICU admission | ||
| 0 - 1 | 412 (34.6) | 406 (43.7) |
| 2 | 509 (42.8) | 384 (41.3) |
| 3 | 257 (21.6) | 120 (12.9) |
| Missing | 12 (1.0) | 19 (2.1) |
| SIRS criteria at ICU admission | ||
| 0 - 1 criteria | 27 (2.3) | 35 (3.8) |
| 2 criteria | 184 (15.5) | 165 (17.8) |
| 3 criteria | 439 (36.9) | 345 (17.1) |
| 4 criteria | 382 (32.1) | 232 (25.0) |
| Missing | 158 (13.3) | 152 (16.4) |
| Sepsis | ||
| qSOFA score definition | 766 (64.4) | n/a |
| SIRS criteria definition | 1 005 (84.5) | n/a |
| ICU LOS, median days (IQR) | 2.6 (1.2 - 5.2) | 2.0 (1.0 - 4.3) |
| In-ICU mortality | 232 (19.5) | 110 (11.8) |
SD = standard deviation
ICU = intensive care unit
LOS = length of stay
IQR = interquartile range
qSOFA = quick sequential organ failure assessment
SIRS = systemic inflammatory response syndrome
* Unless otherwise specified