Table 1.
Patient characteristics
| N | 38 |
|---|---|
| Age, yr, mean (SD) | 61.11 (8.18) |
| Sex, n (%) | |
| Male | 26 (68.5) |
| Female | 12 (31.6) |
| Days of symptoms, median (IQR) | 8.00 (5.00–12.00) |
| PEEP, cm H2O, median (IQR) | 10.00 (9.00–12.00) |
| Driving pressure cm H2O, median (IQR) | 10.50 (7.25–12.75) |
| Plateau pressure cm H2O, median (IQR) | 20.50 (17.00–23.00) |
| Tidal volume, ml, mean (SD) | 423.68 (73.46) |
| PaO2/FiO2, mm Hg, mean (SD) | 131.84 (47.92) |
| Compliance, ml/cm H2O, mean (SD) | 48.96 (24.45) |
| Severity CT, %, median (IQR) | 62.5 (50–75) |
| Nonfocal morphology, n (%) | 30 (78.9) |
Definition of abbreviations: CT = computed tomography; FiO2 = fraction of inspired oxygen; IQR = interquartile range; PaO2 = arterial oxygen tension; PEEP = positive end-expiratory pressure; SD = standard deviation.