Table 1.
Participants smoking status * and lung function ** by sex.
| Men | Women | p-value | |
|---|---|---|---|
| Smoking status (pack years) | <0.001 | ||
| Never | 78 (19.6) | 320 (80.4) | |
| 0–10 | 22 (62.9) | 13 (37.1) | |
| 10–20 | 57 (87.7) | 8 (12.3) | |
| 20+ | 152 (93.3) | 11 (6.7) | |
| Lung Function | |||
| FEV1 (L) | 3.1 (0.77) | 2.3 (0.60) | <0.001 |
| FEV1 (%, predicted) | 90.5 (17.34) | 92.3 (17.10) | 0.1913 |
| FVC (L) | 4.0 (0.79) | 2.8 (0.66) | <0.001 |
| FVC (%, predicted) | 89.3 (13.66) | 88.7 (14.63) | 0.5801 |
| FEV1/FVC (%) | 77.8 (8.66) | 81.9 (5.73) | <0.001 |
* Smoking pack-years are expressed in N (%); ** Lung function measures are taken post bronchodilator and are expressed in Mean (SD); Abbreviations: FEV1—1 s forced expiratory volume, FVC—forced vital capacity, SD—standard deviation.