Table 4.
Lung function parameters and FENO of asthma and COPD patients
| PFTs | COPD n = 14 | Asthma n = 25 | P value |
|---|---|---|---|
| FEV1(Liters) | 1.75 ± 0.61 | 2.52 ± 0.94 | 0.0230 |
| FVC(Liters) | 2.65 ± 0.79 | 3.19 ± 0.96 | 0.1345 |
| FEV1/FVC | 60.69 ± 7.77 | 78.67 ± 10.15 | 0.0004 |
| PEF(L/min) | 249 ± 160 | 430.83 ± 213.97 | 0.0688 |
| FEF25(L/sec) | 2.30 ± 0.83 | 6.28 ± 3.27 | 0.0014 |
| FEF50(L/sec) | 2.44 ± 1.47 | 3.09 ± 1.56 | 0.0154 |
| FEF75(L/sec) | 0.40 ± 0.28 | 0.99 ± 0.50 | 0.0012 |
| FENO(ppb) | 56.54 ± 28.01 | 84.78 ± 39.32 | 0.0285 |
PFTs-pulmonary function tests; FEV1-forced expiratory volume in one second; FVC-forced vital capacity; PEF-peak expiratory flow; FEF25,50,75-forced expiratory flow at 25,50,75% respectively; FENO-fraction of exhaled nitric oxide; ppb-parts per billion