Oxygen | Air | Mean difference | p value | 95% CI | |
---|---|---|---|---|---|
Values are mean (SE) with 95% confidence limits for differences. | |||||
Sao2=oxygen saturation; VAS=visual analogue scale. | |||||
Sao2 (%) at 5 min | 92.7 (1.1) | 89.9 (1.2) | 2.7 | <0.0001 | +1.1 to +3.1 |
VAS (mm) at 5 min | 14 (3.6) | 19 (5.7) | 5 | NS | −11 to +1 |
Subjective recovery time (s) | 182 (33.1) | 151 (17.7) | 31 | NS | −23 to +85 |
Objective recovery time (s) | 215 (38.4) | 164 (17.9) | 51 | NS | −37 to +139 |