| Day -2 | Day -1 | Day 0 | Day 1 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ARM | Total per arm | N | Mean (95% CI) |
N | Mean (95% CI) |
N | Mean (95% CI) |
N | Mean (95% CI) |
| Oxygen | 117 | 117 | 4.3 (3.9,4.7) |
117 | 4.5 (4.1,4.9) |
117 | 4.5 (4,4.9) |
115 | 4 (3.5,4.4) |
| Air | 110 | 108 | 4.5 (4.1,4.9) |
108 | 4.6 (4.1,5) |
109 | 4.8 (4.4,5.2) |
105 | 4.3 (3.8,4.7) |
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