- Multivariable linear regression analysis of 6MWT difference.
| Characteristic | β | SE | P-value |
|---|---|---|---|
| Blood-gas analysis | |||
| FeNO | -2.157 | 0.836 | 0.014 |
| Pulmonary function | |||
| DLCO | -22.528 | 7.48 | 0.004 |
6MWT: 6-min walking test, SE: standard error, FeNO: exhaled nitric oxide, DLCO: diffusing capacity of the lungs for carbon monoxide