Table 1.
Baseline characteristics.
| Variable | Pre-Intervention (n = 753) | Post-Intervention (n = 803) | P-value |
|---|---|---|---|
| Age, years (mean ± SD) | 59.4 ± 20.8 | 58.2 ± 20.3 | 0.26 |
| Sex, male (%) | 63.5 | 61.9 | 0.54 |
| Source | 0.11 | ||
| Emergency (%) | 43.4 | 43.3 | |
| Ward (%) | 30.6 | 29.5 | |
| Other (%) | 26.0 | 27.2 | |
| Diagnostic category | 0.04 | ||
| Trauma (%) | 29.6 | 35.3 | |
| Respiratory (%) | 27.7 | 22.6 | |
| Neuro (%) | 11.7 | 13.8 | |
| Gastrointestinal (%) | 7.8 | 6.1 | |
| Cardiovascular (%) | 6.9 | 6.0 | |
| Other (%) | 16.3 | 16.2 | |
| Length of mechanical ventilation, days (mean ± SD) | 6.5 ± 10.9 | 6.1 ± 8.1 | NA |
| Ventilator-free days (mean ± SD) | 16.9 ± 10.9 | 17.2 ± 10.7 | NA |
| Apache II score (mean ± SD) | 22.3 ± 7.9 | 22.3 ± 8.6 | 0.97 |
| Mortality, % (95% CI) | 23.5 (20.5, 26.7) | 22.2 (19.3, 25.2) | 0.54 |
APACHE, acute physiology and chronic health evaluation; NA, not applicable