Mean age and lung function in 80 non-smokers and 18 ever smokers (ex-smokers and current smokers) at the 22 year check up
| Non-smokers (n=80) | Ever-smokers (n=18) | |
|---|---|---|
| FEV1=forced expiratory volume in 1 second; VC=vital capacity. | ||
| FEV1 (% pred) | ||
| Mean | 99 | 95 |
| 95% CI | 96–102 | 88–102 |
| VC (% pred) | ||
| Mean | 104 | 103 |
| 95% CI | 100–107 | 96–110 |
| FEV1/VC (%) | ||
| Mean | 84 | 82 |
| 95% CI | 82–85 | 78–85 |