Multidisciplinary discussion diagnosis
| No. of patients | |
| Diffuse parenchymal lung disease | |
| Idiopathic pulmonary fibrosis | 13 (11.6) |
| Nonspecific interstitial pneumonia | 6 (5.4) |
| Cryptogenic organising pneumonia | 6 (5.4) |
| Acute fibrinous organising pneumonia | 1 (0.9) |
| Unclassified interstitial pneumonia | 13 (11.6) |
| Chronic hypersensitivity pneumonitis | 9 (8) |
| Connective tissue disease associated interstitial lung disease | 16 (14.3) |
| Smoking-related interstitial lung disease | 1 (0.9) |
| Chronic eosinophilic pneumonia | 4 (3.6) |
| Sarcoidosis | 2 (1.8) |
| Pulmonary amyloidosis | 1 (0.9) |
| Eosinophilic granulomatosis with polyangiitis | 1 (0.9) |
| Drug-induced interstitial lung disease | 4 (3.6) |
| Radiation pneumonitis | 1 (0.9) |
| Diffuse alveolar haemorrhage | 1 (0.9) |
| Multicentric Castleman disease | 2 (1.8) |
| Viral pneumonia | 1 (0.9) |
| Malignant tumour | |
| Lung cancer | 17 (15.2) |
| Malignant lymphoma | 3 (2.7) |
Data are presented as n (%).