Table 2.
Summary of participant demographics (n = 26).
| Healthy | Asthmatic | COPD | |
|---|---|---|---|
| Number of subjects (male/female) | 10 (6/4) | 7 (3/4) | 9 (6/3) |
| Age mean years ± SD (range) | 51 ± 5.2 (44–60) | 47 ± 5.2 (40–57) | 54 ± 5.8 (41–60) |
| BMI mean kg/m2 ± SD (range) | 25 ± 3.7 (20–32) | 25 ± 2.4 (22–28) | 24 ± 4.9 (19–34) |
| FEV1/FVC1 ratio | 0.771 ± 0.04 (0.713–0.825) | 0.665 ± 0.04 (0.597–0.697) | 0.611 ± 0.06 (0.501–0.675) |
| Smokers (%) | 30% | 28% | 66% |
SD = standard deviation; BMI = body mass index; COPD = chronic obstructive pulmonary disease; FEV1 = forced expiratory volume in one second; FVC = forced vital capacity.