TABLE 4.
Pulmonary function in patients with chronic hypersensitivity pneumonitis
| V′O2 ≥84% pred | V′O2 <84% pred | p-value | |
| Subjects n | 14 | 14 | |
| FVC L | 2.22±0.60 | 1.85±0.66 | 0.13 |
| FVC % pred | 62 (58–70) | 45 (41–59) | 0.002 |
| FEV1 L | 1.88±0.45 | 1.62±0.56 | 0.20 |
| FEV1 % pred | 70±13 | 53±14 | 0.003 |
| FEV1/FVC | 0.86±0.06 | 0.89±0.04 | 0.14 |
| FEV1/FVC % pred | 106 (105–113) | 108 (105–115) | 0.54 |
| FEF25–75% | 101±29 | 95±34 | 0.65 |
| TLC L | 3.67 (3.00–4.17) | 2.92 (2.43–3.59) | 0.14 |
| TLC % pred | 69 (62–77) | 55 (49–67) | 0.005 |
| RV L | 1.33 (1.10–1.52) | 1.15 (0.98–1.38) | 0.25 |
| RV % pred | 78 (69–91) | 76 (56–86) | 0.35 |
| RV/TLC | 0.37±0.06 | 0.41±0.07 | 0.21 |
| RV/TLC % pred | 131±29 | 151±45 | 0.17 |
| DLCO % pred | 50 (38–71) | 33 (26–45) | 0.01 |
Data are presented as mean±sd or median (25th–75th percentile), unless otherwise stated. V′O2: oxygen production; FVC: forced vital capacity; FEV1: forced expiratory volume in 1 s; FEF25–75%: forced expiratory flow at 25–75% of FVC; TLC: total lung capacity; RV: residual volume; DLCO: diffusing capacity of the lung for carbon monoxide.