Patient characteristics
| Cohort 1 | Cohort 2 | All | |
| Subjects n | 53 | 36 | 89 |
| Age years | |||
| Mean±sd | 67.7±7.0 | 68.3±7.2 | 67.9±7.0 |
| Median (range) | 69 (47–82) | 68.0 (49–81) | 68.0 (47–82) |
| Male | 44 (83.0) | 27 (75.0) | 71 (79.8) |
| Race | |||
| American Indian | 1 (1.9) | 1 (1.1) | |
| Black | 1 (2.8) | 1 (1.1) | |
| White | 52 (98.1) | 35 (97.2) | 87 (97.8) |
| Height cm | |||
| Mean±sd | 173.8±8.2 | 172.8±9.6 | 173.4±8.8 |
| Median (range) | 175.3 (152–193) | 175.3 (155–189) | 175.3 (152–193) |
| Weight kg | |||
| Mean±sd | 89.4±14.8 | 89.6±15.1 | 89.5±14.8 |
| Median (range) | 89.1 (57–122) | 89.0 (63–122) | 89.1 (57–122) |
| Subjects with time since IPF diagnosis of | |||
| <1 year | 19 (35.8) | 15 (41.7) | 34 (38.2) |
| 1–3 years | 21 (39.6) | 12 (33.3) | 33 (37.1) |
| >3 years | 13 (24.5) | 9 (25) | 22 (24.7) |
Data are presented as n (%) unless otherwise stated. IPF: idiopathic pulmonary fibrosis.