Characteristics of patients with interstitial lung disease at the time of initial clinic visit (n=290)
| Age mean (SD) years | 70.1 (11) |
| Male/female n (%) | 169/121 (58/42) |
| BMI, kg/m2, mean (SD) | 29.7 (6.0) |
| Underweight:<18.5 n (%) | 3 (1) |
| Normal: 18.5–24.9 n (%) | 52 (17.9) |
| Overweight: 25–29.9 n (%) | 98 (33.8) |
| Obese: 30–39.9 n (%) | 118 (40.7) |
| Morbidly obese: ≥40 n (%) | 19 (6.6) |
| Emphysema n (%) | 79 (27.2) |
| COPD n (%) | 29 (10.0) |
| Clinical diagnosis | |
| IPF n (%) | 129 (44.5) |
| Non- IPF n (%) | 161 (55.5) |
| CTD-related | 51 (17.6) |
| HP | 38 (13.1) |
| Unclassifiable non-specific PF | 22 (7.6) |
| NSIP | 20 (6.9) |
| Drug-related | 12 (4.1) |
| Smoking-related ILD | 8 (2.8) |
| Other (asbestosis, sarcoidosis, organising pneumonia) | 10 (3.4) |
BMI, body mass index; COPD, chronic obstructive pulmonary disease; CTD, connective tissue disease; IPF, idiopathic pulmonary fibrosis; PF, pulmonary fibrosis.