Table 1.
Patient characteristics at baseline.
| Patient number | APACHE II | SOFA | PEEP (cmH2O) | Vt (ml/kg) |
PaO2/FiO2 | ARDS onset (days) | Minute ventilation (L/min) | Etiology |
|---|---|---|---|---|---|---|---|---|
| 1 | 17 | 6 | 16 | 3.9 | 148 | 0 | 11.1 | H1N1 |
| 2 | 5 | 15 | 16 | 6.0 | 71 | 0 | 10.6 | Sev Pn |
| 3 | 23 | 9 | 12 | 9.6 | 197 | 0 | 7.3 | Asp |
| 4 | 23 | 11 | 10 | 6.0 | 254 | 0 | 7.0 | H1N1 |
| 5 | 14 | 9 | 10 | 6.1 | 280 | 0 | 9.3 | Sev Pn |
| 6 | 22 | 17 | 12 | 5.6 | 148 | 0 | 8.6 | AH |
| 7 | 29 | 12 | 14 | 7.0 | 123 | 0 | 7.9 | Asp |
| 8 | 15 | 3 | 10 | 6.5 | 142 | 0 | 7.9 | H1N1 |
| 9 | 4 | 3 | 14 | 6.0 | 148 | 0 | 7.4 | Asp |
| 10 | 24 | 15 | 12 | 7.6 | 265 | 1 | 8.6 | Sev Pn |
| min | 4 | 3 | 10 | 3.9 | 71 | 0 | 7.3 | |
| max | 29 | 17 | 16 | 9.6 | 280 | 1 | 11.1 | |
| median | 20 | 10 | 12 | 6.0 | 148 | 0 | 8.2 | |
AH, alveolar hemorrhage; APACHE II, Acute Physiology and Chronic Health Evaluation II; ARDS, acute respiratory distress syndrome; Asp, aspiration; H1N1, influenza A H1N1; max, maximal value; min, minimal value; PaO2/FiO2, the ratio of partial pressure of oxygen in arterial blood and fraction of inspired oxygen; PEEP, positive end-expiratory pressure; Sev Pn, severe pneumonia; SOFA, sequential organ failure assessment; Vt, tidal volume.