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| Healthy n = 7 | COPD n = 8 | |
| Sex (Male/Female) | 4/3 | 5/3 |
| Age (years) | 66 (44–69) | 62 (51–68) |
| FEV1 (L) | 3.14 (2.45–4.36) | 1.77 (1.38–2.97) |
| FEV1 predicted (%) | 101 (91–126) | 68 (57–81) |
| FEV1/FVC % | 78 (70–81) | 63 (34–84) |
| Pack year history | 0 | 26 (13–60) |
| Inhaled corticosteroid use (%) | 0 | 50 |
| Current smokers (%) | 0 | 50 |
