| Non-smokers (n = 10) | Ex-smokers (n = 11) | Chronic smokers (n = 13) | |
---|---|---|---|---|
Men* | 3 (30%) | 11 (100%) | 13 (100%) | |
Age (years) | 56.3 ± 14.7 | 63 ± 9.5 | 67.4 ± 7.1 | |
FEV1 (Liters, % pred) | 2.2 ± 0.6 L, 102.3 ± 2.8% | 2.4 ± 0.5 L, 97.5 ± 6.5% | 2.1 ± 0.3 L, 89.1 ± 5.2% | |
FVC (Liters, % pred) | 2.9 ± 0.6 L, 113.4 ± 4.6% | 3.6 ± 0.5 L, 106.0 ± 5.3% | 3.4 ± 0.5 L, 92.3 ± 7.2% | |
FEV1/FVC (%) | 73.6 ± 11.8 | 66.6 ± 12.5 | 62.9 ± 10.8 | |
CC16 intensity | ||||
 | 0 | 2 (20%) | 3 (27%) | 5 (39%) |
 | 1 | 3 (30%) | 4 (36%) | 3 (23%) |
 | 2 | 5 (50%) | 4 (36%) | 5 (39%) |