Table 3

Lung function tests for the subgroup with obstructive pattern and forced expiratory volume in one second (FEV1)<60% predicted

VaiableData
Subjects n9
FEV128 (21.5–41.5)
FVC57 (49–61.2)
FEV1/FVC41 (34.5–57.5)
TLC124 (100.5–130.7)
RV349 (172.2–381.7)
Dl,CO/VA92 (61–117)
MEF 25–7511 (5.7–17.7)

  • Data are presented as % pred median (confidence interval)

  • FVC: Forced vital capacity

  • TLC: Total lung capacity

  • RV: Residual volume

  • Dl,CO/VA: Diffusing capacity for carbon monoxide corrected for alveolar volume

  • MEF: Midexpiratory flow between 25% and 75% of FVC