Table 1.
Clinical and demographic characteristics of the COPD and control groups.
| Group A (n=30) | Group B (n=30) | Control (n=23) | p | |
|---|---|---|---|---|
| Age (y) | 64.1 ± 7.3 | 64.4 ± 8.6 | 65.8 ± 7.1 | 0.073A |
| FEV1/FVC | 63.9 ± 14.8 | 71.1 ± 13.1 | 90.2 ± 4.2 | 0.092m |
| FEV1 | 1.6 ± 0.7 | 2.0 ± 0.8 | 2.2 ± 0.5 | 0.054m |
| O2 | 89.3 ± 8.5 | 94.2 ± 4.4 | 98 ± 0.9 | 0.009m |
Group A: COPD at the exacerbation period; Group B: COPD at the stable period; AANOVA; mMann–Whitney U test; FEV1: forced expiratory volume; FVC: forced vital capacity; O2: oxygen saturation; y: year.