Respiratory symptoms reported by players
| No symptoms | ≥1 symptom | Coughing | Excessive mucus production | Chest tightness | Difficulty breathing | Wheezing | |
| EVH+ | 19 (70) | 8 (30) | 1 (4) | 1 (4) | 2 (7) | 4 (15) | 1 (4) |
| EVH− | 60 (89) | 8 (11) | 4 (6) | 1 (1) | 2 (3) | 4 (6) | 2 (3) |
| p-value | 0.06 | 0.06 | 1.00 | 0.50 | 0.32 | 0.22 | 1.00 |
Data are presented as n (%), unless otherwise stated. n=95; n=2 did not complete questionnaires. EVH: eucapnic voluntary hyperpnoea.