Variable | r | p Value |
Baseline PaO2, kPa | 0.60 | <0.001 |
Exercise SpO2, % | 0.49 | <0.001 |
Baseline SpO2, % | 0.47 | <0.001 |
6MWT, distance, m | 0.27 | 0.007 |
Age, years | −0.27 | 0.006 |
FEV1, litres | 0.22 | 0.027 |
6MWT, 6 min walk test; FEV1, forced expiratory volume in 1 s; HAST, hypoxia-altitude simulation test; PaO2, arterial oxygen pressure; SpO2, arterial oxygen saturation by pulse oximetry.