Characteristic | Asthmatics | Non-asthmatics |
---|---|---|
(n = 164) | (n = 516) | |
Mean age, years | 43 (20–64) | 49 (20–81) |
Gender (male: female) | 2:3 | 2:3 |
Body mass index, kg/m2†| 23.5 ± 2.4 (17–30) | 22.6 ± 2.4 (17–30) |
Smoking history, number (%) | Â | Â |
Never smoked | 96 (58) | 296 (57) |
Current smoker | 22 (13) | 120 (23) |
Ex-smoker | 2 (1) | 42 (8) |
FEV1 (%predicted) | 93 (70–135) | 98 (70–148) |
FEV1/FVC (%predicted) | 78 (70–95) | 82 (70–99) |