Table 2.
Baseline characteristics between control and COPD groups
| Characteristics | Control | COPD | P-value |
|---|---|---|---|
|
| |||
| N | 25 | 20 | |
| Male/female, n | 16/9 | 13/7 | 0.956 |
| Age (years) | 73.1±2.6 | 78.3±1.7 | 0.258 |
| Smoker/non-smoker, n | 10/15 | 12/8 | 0.192 |
| Pack-years | 10.8±3.2 | 22.4±5.2 | 0.098 |
| FEV1, post-bronchodilator, L | 1.628±0.123 | 0.878±0.051 | <0.001 |
| FEV1 %pred, post-bronchodilator, % | 74.6±5.0 | 45.2±2.2 | <0.001 |
| FEV1/FVC%, % | 78.5±1.9 | 57.1±2.3 | <0.001 |
Note: Data are expressed as mean ± SEM.
Abbreviation: %pred, percentage of predicted; SEM, standard error of the mean.