Table 1. Baseline characteristics of study participants.
| Characteristics | Values |
|---|---|
| Male | 35 (69%) |
| Age, years | 74.2±7.5 |
| Height, cm | 161.1±9.1 |
| Weight, kg | 62.0±12.9 |
| BMI, kg/m2 | 23.7±3.5 |
| Smoking status | |
| Non/ex/current | 17 (33%)/29 (57%)/5 (10%) |
| Diagnosis | |
| IPF | 34 (67%) |
| CVD-associated ILD | 13 (25%) |
| DM-associated ILD | 7 (13%) |
| RA-associated ILD | 2 (4%) |
| ANCA-associated ILD | 2 (4%) |
| SSc-associated ILD | 1 (2%) |
| SjS-associated ILD | 1 (2%) |
| Other (biopsy not performed, non-IPF) | 4 (8%) |
| Use of supplemental oxygen | 6 (12%) |
Non, non-smoker; ex, former smoker; BMI, body mass index; IPF, idiopathic pulmonary fibrosis; CVD, collagen-vascular disease; DM; dermatomyositis RA, rheumatoid arthritis; ANCA, anti-neutrophil cytoplasmic antibody; SSc, systemic sclerosis; SjS, Sjögren’s syndrome; ILD, interstitial lung disease.