Table 1.
High concentration versus titrated oxygen therapy in the pre-hospital setting in patients with confirmed COPD
| High concentration | Titrated | Relative risk (95% CI) | Difference | P Value | |
|---|---|---|---|---|---|
| Mortality | 9% | 2% | 0.22 (0.5 to 0.91) | 0.04 | |
| Ventilation | 14% | 10% | 0.67 (0.29 to 1.54) | 0.34 | |
| Arterial blood gases† | |||||
| Mean (SD) pH | 7.29 (0.15) | 7.41 (0.09) | 0.12 | 0.01 | |
| Mean (SD) PaCO2 (mmHg) | 76.5 (50.2) | 42.9 (14.2) | −33.6 | 0.02 | |
| Mean (SD) PaO2 (mmHg) | 98.4 (46.1) | 81.5 (30.9) | −16.9 | 0.46 |
† Treatment per protocol analysis.
Reproduced with modification from reference [3].