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Histological diagnosis
| Histology | No. of patients |
|---|---|
| UIP/Idiopathic pulmonary fibrosis | 122 (39.2%) |
| Cryptogenic organising pneumonia | 31 (10%) |
| Respiratory bronchiolitis interstitial lung disease | 16 (5.1%) |
| Nonspecific interstitial pneumonia | 13 (4.2%) |
| Hypersensitivity pneumonitis | 12 (3.9%) |
| Lymphoma | 12 (3.9%) |
| Acute interstitial pneumonia | 10 (3.2%) |
| Sarcoidosis | 10 (3.2%) |
| Infection | 10 (3.2%) |
| Others | 60 (19.3%) |
