Data on Study End Points
| End point | Early Treatment | Late Treatment | P Value | Statistics |
|---|---|---|---|---|
| Mechanical ventilation and/or death <7 days, number (%) | 7 (21) | 17 (63) | .0013 | Logistic regression |
| Mechanical ventilation and/or death before discharge, number (%) | 9 (27) | 19 (70) | .004 | χ2 |
| Mechanical ventilation before discharge, number (%) | 8 (25) | 17 (68) | .005 | χ2 |
| a/APo2 after 6 hours, mean ± SD | 0.48 ± 0.18 | 0.36 ± 0.18 | .02 | Multiple regression |