Table 1. Anthropometric variables and spirometric variables of the healthy group and COPD group (n=15/group).
| Variable | Healthy | COPD | P |
|---|---|---|---|
| Age (years) | 62.5±9.4 | 65.3±7.3 | 0.37 |
| Gender (M/F) | 7/8 | 8/7 | 1.00 |
| Height (m) | 1.70±0.05 | 1.65±0.11 | 0.11 |
| Weight (kg) | 70.1±8.1 | 66.3±10.9 | 0.29 |
| BMI (kg/m2) | 24.2±2.3 | 24.6±4.8 | 0.78 |
| FVC (% predicted) | 102.6±10.4 | 70.2±16.2 | <0.0001 |
| FEV1 (% predicted) | 102.8±10.6 | 46.9±11.1 | <0.0001 |
| FEV1/FVC (% predicted) | 98.4±6.1 | 68.6±11.0 | <0.0001 |
| MIP (cmH2O) | –84.7±29.8 | –64.7±27.2 | 0.07 |
| MEP (cmH2O) | 104.7±35.8 | 81.4±28.6 | 0.06 |
BMI= body mass index; FVC= forced vital capacity; FEV1= forced expiratory volume in 1 second; FEV1/FVC: Tiffeneau index; MIP: maximal inspiratory pressure; MEP: maximal expiratory pressure. Values are mean±SD