Bronchoalveolar lavage (BAL) fluid analysis and high-resolution computed tomography (HRCT) findings
| BAL performed yes/no | 50/47 |
| Total cells ×105 per mL | 17.75±14.05 |
| Macrophages % | 73.92±16.49 |
| Lymphocytes % | 11.90±11.72 |
| Neutrophils % | 12.04±13.90 |
| Eosinophils % | 9.25±5.65 |
| HRCT pattern | |
| Emphysema extent | 14.93±8.69 |
| ILD extent | 39.58±19.82 |
Data are presented as mean±sd, unless otherwise stated. ILD: interstitial lung disease.