Skip to main content
. 2018 May 18;4(2):00143-2017. doi: 10.1183/23120541.00143-2017

TABLE 1.

Baseline lung functional characteristics of the study subjects

Severe asthmatic subjects COPD subjects p-value
FEV1 % pred 74±22 73±22 0.89
FVC % pred 89±19 92±22 0.57
FEV1/FVC 0.68±0.1 0.62±0.1 0.02
FEF25–75% % pred 40±21 35±16 0.23
FEF75% % pred 53±24 33±19 0.0007
FEF50% % pred 41±22 38±20 0.57
FEF25% % pred 37±21 47±23 0.10

Data are presented as mean±sd, unless otherwise stated. COPD: chronic obstructive pulmonary disease; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; FEF: forced expiratory flow; FEF25–75%: FEF at 25–75% of FVC; FEF75%: FEF at 75% of FVC; FEF50%: FEF at 50% of FVC; FEF25%: FEF at 25% of FVC.