TABLE 8.
The influence of 30 s, 60 s, and 120 s oscillations of 80/20 and 30/70 O2/N2 concentrations on arterial partial pressure of carbon dioxide.
| Testing period | Mean | SD | p-value |
|---|---|---|---|
| 30 s oscillation rate | |||
| Pre | 37.51 | 4.44 | |
| Mid | 35.43 | 7.28 | 0.31 |
| Post | 36.66 | 5.35 | 0.89 |
| Recovery | 34.08 | 7.14 | <0.05 |
| 60 s Oscillation Rate | |||
| Pre | 31.5 | 8.51 | |
| Mid | 29.97 | 7.36 | 0.43 |
| Post | 28.34 | 8.15 | <0.05 |
| Recovery | 28.47 | 8.39 | <0.05 |
| 120 s Oscillation Rate | |||
| Pre | 36.68 | 4.43 | |
| Mid | 35.56 | 4.84 | 0.88 |
| Post | 33.91 | 7.37 | 0.29 |
| Recovery | 30.48 | 5.99 | <0.01 |
SD, standard deviation. Bolded p-values denote a significant difference between that testing period and the pre exposure testing period (p < 0.05).