N | 492 |
Age, years | 59.4 ± 5.2 |
Pack-years smoking | 34.0 (28.0 - 45.6) |
Current smoking,% | 59.1 |
FEV1, liter | 3.45 ± 0.76 |
FEV1,%predicted | 98.2 ± 19.7 |
FEV1/FVC,% | 70.0 ± 10.7 |
Emphysema; Perc15, HU | −920 (−930 to −907) |
Emphysema;%LAA −950 HU | 2.5 (1.3 - 4.3) |
Emphysema; >5%LAA −950 HU,% | 19.7 |
Lung volume on CT, liter | 6.5 ± 1.4 |
Chronic Mucus Hypersecretion,% | 29.7 |
Cough,% | 32.7 |
Dyspnea,% | 28.4 |
Wheezing,% | 25.3 |
No respiratory symptoms,% | 48.6 |