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Chronic Obstructive Pulmonary Disease (COPD) and control groups in the study.
| Variable (Mean ± SD) | COPD (n = 118) | Controls (n = 63) | |
|---|---|---|---|
| Age (years) | 67.0 ± 8.4 | 67.4 ± 9.7 | |
| Male | 61% | 47% | |
| Smoking Status | -never | 0 | 39 |
| -ex | 78 | 18 | |
| -current | 40 | 6 | |
| Body Mass Index (kg/m2) | 25.6 ± 4.5 | 27.0 ± 4.4 | |
| Predicted % FEV1 | 49.6 ± 18 | 98 ± 16 | |
| Oxygen saturation % | 95.0 ± 2.4 | 95.8 ± 2.3 | |
