Smokers with COPD (n = 8) | Smokers with normal lung function (n = 10) | Non-smokers (n = 8) | |
---|---|---|---|
*p<0.05 v smokers with normal lung function and non-smokers. †p<0.0001 between groups. | |||
M:F | 8:0 | 10:0 | 2:6 |
Age (years) | 69 (3) | 65 (2) | 64 (5) |
Smoking history (pack years) | 55 (7) | 46 (8) | – |
FEV1 (% predicted)† | 66 (3)* | 102 (3) | 107 (6) |
FEV1/FVC (%)† | 64 (2)* | 79 (2) | 80 (1) |
Pao2 (kPa) | 10.5 (0.3) | 11.7 (0.4) | 11.7 (0.9) |
Paco2 (kPa) | 5.5 (0.1) | 5.0 (0.1) | 5.1 (0.1) |