Table 1.
Baseline demographics of participants (n = 150)
| Characteristics | Value |
|---|---|
| Male (%) | 122 (81.3%) |
| Age, years ± SD | 72.9 ± 6.2 |
| Smoking status | |
| Never (%) | 40 (26.6%) |
| Former (%) | 101 (67.3%) |
| Current (%) | 9 (6.0%) |
| Time since diagnosis, years (interquartile range) | 0.5 (0.0–9.2) |
| < 1 month | 0.0 (0.0–0.02) |
| 1–12 months | 0.5 (0.3–0.8) |
| > 12 months | 2.8 (1.8–4.0) |
| FVC, % predicted ± SD | 87.2 ± 23.1 |
| DLCO, % predicted ± SD | 48.4 ± 14.1 |
| 6MWD, m ± SD | 450.3 ± 112.5 |
| Long-term oxygen therapy (%) | 19 (12.7%) |
Values are presented as n (%), mean ± standard deviation (SD) or mean with interquartile range. FVC: Forced vital capacity; DLCO: Diffusing capacity of the lung for carbon monoxide; 6MWD: distance walked during the 6-min walk test. The same patients were used in a validation study of K-BILD (manuscript submitted)