Differences before and after treatment in eucapnic voluntary hyperpnoea (EVH)+ players on medication
| Pre-treatment | Post-treatment | p-value | |
| FeNO ppb | 85.1±60.7 | 27.5±10.91 | 0.04 |
| Baseline FEV1 L | 4.41±0.55 | 4.25±0.32 | 0.23 |
| MVV during EVH % predicted | 85.29±13.61 | 87.81±13.58 | 0.38 |
| Fall in FEV1 post-EVH % | 14 (28.0) | 8 (9.0) | 0.02# |
Data are presented as mean±sd or median (interquartile range), unless otherwise stated. Bold type represents statistical significance. FeNO: exhaled nitric oxide; FEV1: forced expiratory volume in 1 s; MVV: maximal voluntary ventilation. #: data analysed using sign exact tests.