Pulmonary function parameters at exacerbation and remission
| Exacerbation | Remission | p‐value | |
| FVC | |||
| L | 2.31±0.59 | 2.78±0.59 | <0.0001 |
| % pred | 82.9±14.3 | 99.9±13.5 | <0.0001 |
| FEV1 | |||
| L | 1.22±0.45 | 1.64±0.42 | <0.0001 |
| % pred | 57.9±15.0 | 80.1±16.8 | <0.0001 |
| FEV1/FVC % | 51.9±9.4 | 59.8±8.9 | 0.0007 |
| FEF25–75 | |||
| L·s−1 | 0.71±0.41 | 1.10±0.52 | 0.0001 |
| % pred | 24.1±10.9 | 38.7±15.0 | <0.0001 |
| FRC | |||
| L | 3.25±0.66 | 3.01±0.62 | 0.0074 |
| % pred | 116.6±19.7 | 104.5±14.3 | 0.0117 |
| TLC | |||
| L | 5.13±0.98 | 4.97±0.96 | 0.0340 |
| % pred | 114.8±10.3 | 111.1±11.0 | 0.0213 |
| RV | |||
| L | 2.56±0.62 | 2.16±0.52 | <0.0001 |
| % pred | 175.5±50.8 | 144.9±30.2 | 0.0011 |
| RV/TLC % | 50.5±7.6 | 45.0±5.1 | 0.0009 |
Data are presented as mean±sd
FVC: forced vital capacity
FEV1: forced expiratory volume in one second
FEF25–75: forced mid-expiratory flow
FRC: functional residual capacity
TLC: total lung capacity
RV: residual volume
% pred: % predicted