Table 1 Baseline patient demographics
| Characteristics |
IPF (n = 330) |
CTD-ILD (n = 672) |
Fibrotic HP (n = 135) |
Unclassifiable (n = 343) |
|---|---|---|---|---|
| Age, years | 68 ± 8 | 57 ± 13 | 62 ± 12 | 65 ± 12 |
| Male | 246 (75%) | 209 (31%) | 59 (44%) | 185 (54%) |
| BMI, kg/m2 | 29 ± 5 | 28 ± 6 | 31 ± 6 | 30 ± 6 |
| Current or past smoking | 263 (80%) | 335 (50%) | 73 (54%) | 217 (63%) |
| Smoking pack-years | 21 (2–37) | 0 (0–18) | 4 (0–21) | 8 (0–28) |
| Baseline lung function | ||||
| FVC, %-predicted | 80 ± 18 | 77 ± 19 | 75 ± 19 | 81 ± 20 |
| DLCO, %-predicted | 60 ± 18 | 63 ± 20 | 62 ± 19 | 65 ± 21 |