Baseline clinical and demographic features of patients
| Age, year | 56±2.3 |
| Male/female | 26/24 |
| Smoking, current/ex/never | 7/18/25 |
| Duration of symptoms, mo, median (range) | 2.5(0–48) |
| Pathologic pattern, cellular/mixed/fibrotic | 6/25/19 |
| Pulmonary function | |
| FVC, % predicted | 75.8±17.4 |
| DLco, % predicted | 57.1±18.6 |
| PaO2, mm Hg | 72.1±11.9 |
DLco, diffusion capacity of carbon monoxide; ex, exsmoker.