Table 1.
Subjects’ characteristics
| 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 |
||
|
FEV1 %predicted post-bronchodilatation |
112.1 |
103.0 |
66.2 |
| 106.8-117.5 |
97.4-108.6 |
59.2-73.3 |
|
|
FEV1/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 |
Data are presented as mean and 95% confidence intervals.