Male | Female | |
Subjects | 4846 | 6736 |
FEF25/FVC s−1 | 1.54±0.30 | 1.54±0.29 |
FEF50/FVC s−1 | 0.88±0.21 | 0.92±0.21 |
FEF75/FVC s−1 | 0.29±0.11 | 0.31±0.12 |
FEF25–75/FVC s−1 | 0.72±0.19 | 0.76±0.19 |
Data are presented as n or mean±sd. FEFx: forced expiratory flow at 25%, 50%, 75% or 25–75% of forced vital capacity (FVC).