Classification | Normal Lung Function | GOLD I | GOLD II |
---|---|---|---|
 | FEV1/FVC > 70% FEV1 ≥ 90% predicted | FEV1/FVC < 70% FEV1 ≥ 80% predicted | FEV1/FVC < 70% 50% ≤ FEV1 < 80% predicted |
No. subjects | 13 | 11 | 13 |
Age | 55.6 ± 4.1 | 69.2 ± 2.9 | 66.9 ± 2.8 |
Gender | 8 F 5 M | 3 F 8 M | 4 F 9 M |
Lung function (FEV 1 /FVC) | 0.82 ± 0.02 | 0.63 ± 0.03 | 0.59 ± 0.02 |
FEV 1 % predicted | 98.8 ± 4.1 | 90 ± 4.0 | 65.6 ± 2.4 |
Smoking status | 6 current smokers | 6 current smokers | 8 current smokers |
 | 4 ex-smokers | 5 ex-smokers | 5 ex smokers |
 | 3 non-smokers |  |  |