Baseline characteristics of 565 patients with acute lung injury/acute respiratory distress syndrome
| Variable | Mean (SD) or n (%) |
|---|---|
| *Pneumonia or aspiration. | |
| Mean (SD) age (years) | 51 (17) |
| Male, n (%) | 332 (59%) |
| White race, n (%) | 426 (75%) |
| Risk factor for ALI/ARDS | |
| Direct pulmonary*, n (%) | 291 (52%) |
| Mean (SD) APACHE III score | 82 (29) |
| Mean (SD) platelet count (×109/l) | 158 (107) |
| Mean (SD) creatinine (mg/dl) | 1.7 (1.7) |
| Mean (SD) Pao2/Fio2 ratio | 133 (63) |
| Low tidal volume ventilation, n (%) | 277 (49%) |
| Vasopressor administration, n (%) | 183 (33%) |