Mean (SD) BAL fluid cells in control subjects and patients with idiopathic pulmonary fibrosis (IPF)
| Control | IPF | p value | |
|---|---|---|---|
| Total cell counts (×105/ml) | 1.5 (1.2) | 3.6 (1.8) | 0.0001 |
| Alveolar macrophages (%) | 87.8 (8.5) | 75.9 (16.1) | 0.0034 |
| Lymphocytes (%) | 10.3 (7.5) | 15.3 (14.3) | NS |
| Neutrophils (%) | 1.3 (1.4) | 5.6 (6.2) | 0.0015 |
| Neutrophils (×103/m) | 1.6 (1.9) | 19.8 (27.9) | 0.0001 |
| Eosinophils (%) | 0.6 (1.8) | 3.2 (5.1) | 0.0005 |