Table 1 Subjects’ characteristics
| Â | Controls | Smokers without COPD | Smokers with COPD |
|---|---|---|---|
No. | 22 | 21 | 18 |
Age (years) | 55.0 | 54.0 | 61.9 |
51.6-58.4 | 50.6-57.4 | 58.6-65.1 | |
Gender (Female/Male) | 7/15 | 11/10 | 13/5 |
Smoking (pack-years) | - | 32.7 | 38.1 |
26.3-39.1 | 33.5-42.7 | ||
FEV 1 %predicted post-bronchodilatation | 112.1 | 103.0 | 66.2 |
106.8-117.5 | 97.4-108.6 | 59.2-73.3 | |
FEV 1 /FVC post-bronchodilatation | 0.79 | 0.76 | 0.56 |
0.77 -0.82 | 0.73-0.79 | 0.52-0.59 | |
DLCO %predicted | 91.8 | 73.2 | 48.2 |
84.9-98.7 | 67.3-79.1 | 40.3-56.1 |