Results of stepwise multiple regression analysis for maximal oxygen uptake (V′O2max) and maximum workload
| V′O2max mL·kg−1·min−1 | Maximum workload watts | |||
| Coefficient (95% CI) | p-value | Coefficient (95% CI) | p-value | |
| Age years | −0.249 (−0.37–−0.13) | <0.001 | −0.24 (−1.17–0.69) | 0.599 |
| Male sex | 5.35 (2.19–8.51) | 0.002 | 4.72 (−34.75–25.30) | 0.748 |
| Haemoglobin g·dL−1 | 9.62 (2.21–17.02) | 0.013 | ||
| FEV1 L | 31.53 (8.88–54.17) | 0.008 | ||
| DLCO % predicted | 0.26 (0.15–0.36) | <0.001 | ||
| Constant | 18.87 (16.80–20.95) | <0.001 | ||
| Adjusted R2 | 0.685 | 0.580 | ||
FEV1: forced expiratory volume in 1 s; DLCO: diffusing capacity of the lung for carbon monoxide.