Table 1.
Baseline characteristics of study populationa (N = 182)
| Characteristic | |
|---|---|
| Age, y | 65.6 ± 8.0 |
| Male gender, N (%) | 155 (85.2) |
| BMI, kg/m2 | 24.0 ± 3.4 |
| Ever smoking, N (%) | 147 (81.9) |
| Surgical Lung Biopsy, N (%) | 97 (53.3) |
| Arterial blood gas analysis | |
| PaO2, mmHg | 82.0 ± 11.6 |
| Pulmonary function | |
| FVC, % predicted | 79.7 ± 19.1 |
| FEV1 / FVC | 85.2 ± 7.5 |
| DLco, % predicted (N = 179) | 58.2 ± 20.1 |
| Dyspnoea index | |
| MMRC (0/1/2/3/4) | 51 / 74 / 41 / 15 / 1 |
| BDI (N = 180) | 8.9 ± 2.4 |
| 6MWT (N = 181) | |
| 6MWD, m | 580 ± 136 |
| SpO2 nadir, % | 82.8 ± 9.1 |
| SGRQ score | |
| Symptom | 44.2 ± 22.6 |
| Activity | 40.0 ± 26.1 |
| Impact | 27.7 ± 19.8 |
| Total | 34.5 ± 20.2 |
BMI body mass index, FVC % predicted percent predicted forced vital capacity; FEV 1 forced expiratory volume in the first second, DL CO % predicted percent predicted diffusion capacity for carbon monoxide, PaO 2 partial pressure for oxygen, 6MWD 6-min walk distance, SpO 2 oxygen saturation by pulse oximetry
aPlus–minus values are means ± SD