Baseline spirometry
| N | FEV1 (l) | Predicted FEV1 (%) | FVC (l) | Predicted FVC (%) | FEV1/FVC | Predicted FEV1/FVC (%) | PEF (l/s) | Predicted PEF (%) | FEF50 (l/s) | Predicted FEF50 (%) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EVH negative and no previous EIB diagnosis | 141 | 4.72±0.77 | 107±11 | 5.62±1.04 | 107±11 | 84.43±6.33 | 102±8 | 10.39±1.72 | 107±12 | 5.37±1.31 | 97±22 |
| EVH positive and a previous EIB diagnosis | 21 | 4.46±0.63 | 99±11* | 5.62±0.87 | 103±11 | 79.58±4.68† | 96±6* | 10.37±1.43 | 103±13 | 4.39±0.80* | 77±13* |
| EVH positive and no previous EIB diagnosis | 57 | 4.62±0.72 | 103±11 | 5.71±0.98 | 108±12 | 81.39±7.03† | 98±8† | 10.31±1.59 | 105±12 | 4.80±1.14† | 85±20* |
| EVH negative and a previous diagnosis of EIB | 9 | 4.55+0.85 | 106±11 | 5.55±1.34 | 108±14 | 83.26±7.64 | 100±8 | 9.42±1.34 | 99±14 | 4.81±0.86 | 88±18 |
Lung function predicted values = European Community for Coal and Steel predicted values.11
↵* Significantly different from EVH-negative athletes with no previous history (p<0.01).
↵† Significantly different from EVH-negative athletes with no previous history (p<0.05).
EIB, exercise-induced bronchoconstriction; EVH, eucapnic voluntary hyperpnoea; FEF50, forced expiratory flow at 50%; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; PEF, peak expiratory flow.