| Parameter | COPD | Control group | Spirman’s correlation with exhaled NO |
| C-RP, mg/l | 7,44±0,35* | 6,25±0,14 | R=0,127, p=0,65 |
| fibrinogen, g/l | 3,32±0,18* | 2,85±0,17 | R=0,179, p=0,523 |
| MMP-2, cu | 178,7±6,58* | 92,5±4,10 | R=0,6, p=0,016 |
| MMP-9, cu | 134,5±11,8* | 103,1±5,55 | R=0,309, p=0,26 |
| hyaluronic acid, mg/ml | 0,29±0,07* | 0,15±0,02 | R=0,008, p=0,974 |
| exhaled NO, ppb | 18,5±2,40 |
Note: *- p≤0,05