Table 2. The histological and clinical diagnosis assigned to patients.

Diagnosis	No [%]
(I) Histological diagnosis
Usual interstitial pneumonia
High confidence	48 [19]
Low confidence	27 [11]
Hypersensitivity pneumonia
Fibrotic	30 [12]
Non-fibrotic	6 [2]
Non-specific interstitial pneumonia
Fibrotic	16 [6]
Cellular	12 [5]
Smoking-related ILD
Respiratory bronchiolitis-ILD	10 [4]
Desquamative interstitial pneumonia	4 [2]
Organizing pneumonia	10 [4]
Sarcoidosis	6 [2]
Sequela after infection	4 [2]
Eosinophilic pneumonia	3 [1]
Miscellaneous*	15 [6]
No specific pattern or non-contributing	59 [24]
(II) MDT diagnosis
Idiopathic Pulmonary Fibrosis
High confidence	46 [18]
Low confidence	27 [11]
Hypersensitivity pneumonia
Fibrotic	32 [13]
Non-fibrotic	7[3]
Non-specific interstitial pneumonia
Fibrotic	12 [5]
Cellular	5 [2]
Smoking-related ILD	16 [6]
Cryptogenic organizing pneumonia	7 [3]
Drug-induced ILD	8 [3]
Sarcoidosis	5 [2]
Sequela after infection	6 [2]
Eosinophilic pneumonia	4 [2]
Miscellaneous**	22 [9]
Connective tissue disease-associated ILD	7 [3]
Unclassifiable ILD	46 [18]

*, asbestosis: 2; bronchiolitis obliterans (hematopoietic stem cell transplant): 2; vasculitis: 2; lymphangitis carcinomatosis/lung adenocarcinoma: 2; emphysema: 2; amyloidosis: 1; Langerhans cell histiocytosis X: 1; granulomatous-lymphocytic ILD: 1; chronic hemorrhage: 1; accumulation of lymphocytes in chronic lymphatic leukemia: 1. **, asbestosis: 3; cystic lung diseases: 3; emphysema: 2; bronchiolitis obliterans (hematopoietic stem cell transplant): 2; vasculitis: 2; lymphangitis carcinomatosis/lung adenocarcinoma: 2; amyloidosis: 1; granulomatous-lymphocytic ILD: 1; pleuroparenchymal fibroelastosis: 1; chronic aspergillosis: 1; combined pulmonary fibrosis and emphysema: 1; nodular lymphoid hyperplasia: 1; accumulation of lymphocytes in chronic lymphatic leukemia: 1; interstitial lung abnormality: 1. ILD, interstitial lung disease; MDT, multidisciplinary team discussion.