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Patient demographics
| Original OxyMask | Modified OxyMask | |
|---|---|---|
| Patients, n | 13 | 13 |
| Male:female | 4:9 | 5:8 |
| Age, years | 56±16 | 60±16 |
| Body mass index, kg/m2 | 35.0±12.3 | 32.7±9.2 |
| O2 requirement (rest), L/min | 2.3±1.3 | 2.5±1.2 |
| O2 requirement (exercise), L/min | 3.4±1.6 | 3.4±1.4 |
Data are presented as means ± SD unless otherwise indicated. There were no significant differences in patient demographics between those who used the original and those who used the modified OxyMask (Southmedic Inc, Canada)
