Table 2 Comparison of major sites of infection
| Â | Culture-positive | Culture-negative | P value |
|---|---|---|---|
Respiratory infection | Â | Â | Â |
n (%) | 2,172 (63.9) | 1,228 (36.1) | Â |
ICU LOS (median, IQR) | 8.0 (4, 16) | 6.7 (3, 12.8) | <.0001 |
Hospital LOS (median, IQR) | 16.0 (6, 32) | 13.0 (5, 26) | 0.0024 |
15-day survival (n, %) | 1,344 (61.9) | 782 (63.7) | 0.4761 |
Hospital survival (n, %) | 949 (43.7) | 619 (50.4) | 0.0086 |
APACHE (mean, SD) | 26.4 (8.0) | 25.4 (8.0) | <.0001 |
Gastrointestinal infection | Â | Â | Â |
n (%) | 1,476 (58.9) | 1,030 (41.1) | Â |
ICU LOS (median, IQR) | 6.5 (3, 13) | 5.0 (3, 11) | 0.0153 |
Hospital LOS (median, IQR) | 15 (5.7, 33) | 11.1 (3, 29) | 0.0059 |
15-day survival (n, %) | 877 (59.4) | 542 (52.6) | 0.0002 |
Hospital survival (n, %) | 617 (41.8) | 402 (39.0) | 0.2892 |
APACHE (mean, SD) | 25.5 (8.2) | 26.1 (8.5) | 0.1180 |