Table 1.
Demographic and clinical characteristics of the IPF cohort
| Variable | IPF (n = 136) | Control (n = 166) |
|---|---|---|
| Age | ||
| Year | 67.3 ± 8.2 | 48.7 ± 16.1 |
| Gender | ||
| Male, % | 97 (71.3%) | 71 (42.8%) |
| Smoking | ||
| Current, % | 2 (1.5%) | 21 (12.7%) |
| Former, % | 98 (72.0%) | 47 (28.3%) |
| Never, % | 36 (26.5%) | 98 (59.0%) |
| FVC, %predicted* | 61.7 ± 19.6 | NA |
| DLCO, % predicted† | 45.0 ± 17.3 | NA |
IPF, Idiopathic pulmonary fibrosis; FVC, forced vital capacity; DLCO, diffusing capacity for carbon monoxide.
*
Based on 117 subjects and measurements within 4 mo of blood draw date.
†
Based on 105 subjects with available measurements within 4 mo of blood draw date.