Table 3.
Lung function test results.
| COPD patients (N = 12) | Controls (N = 7) | p value | |
|---|---|---|---|
| FEV1% | 49 (35–72) | 107 (80–120) | <0.001 |
| FVC% | 64 (56–81) | 103 (87–120) | 0.001 |
| FEV1/FVC ratio | 60 (45–70) | 79 (75–83) | <0.001 |
| RV% | 165 (141–204) | 105 (79–139) | 0.045 |
| TLC% | 112 (99–123) | 98 (94–112) | NS |
| RV/TLC ratio | 56 (50–69) | 37 (28–45) | 0.001 |
| DLCO% | 65 (27–94) | 82 (72–96) | NS |
| KCO% | 84 (43–110) | 90 (77–106) | NS |
Values are expressed as median (interquartile range); p value < 0.05 as statistically significant; FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity; TLCOc = transfer factor of the lung for carbon monoxide; KCO = transfer coefficient; RV = residual volume; TLC = total lung capacity.