Table 1.
Characteristics of the 87 study participants
| Variable | n (%) or mean ± SD |
|---|---|
| Age [yrs] | 67.3 ± 9.6 |
| Male | 51 (58.6) |
| Current smokers | 41 (47.1) |
| BMI [kg/m2] | 25.5 ± 5.4 |
| CAT score | 13.3 ± 7.2 |
| mMRC score1 | 1.4 ± 0.9 |
| Number of past-year exacerbations | 0.4 ± 0.8 |
| FEV1predicted [%]2 | 69.1 ± 24.3 |
| FEV1/FVC [%]2 | 53.3 ± 13.8 |
| Number of comorbidities | 2.2 ± 2.1 |
| Average daily steps3 | 4783.6 ± 3337.6 |
| Average daily AEE [cal]3 | 443.6 ± 383.1 |
| Average daily PA3 [min]3 | 94.6 ± 84.0 |
| Average daily PAL [METs]3 | 1.3 ± 0.3 |
BMI, body mass index; CAT, COPD assessment test; FEV1predicted, forced expiratory volume in 1 s of predicted; FVC, forced vital capacity; MET, metabolic equivalent; mMRC, modified Medical Research Council; PAL, physical activity level; PA3, physical activity duration above 3 METs; SD, standard deviation. 1(n = 79); 2(n = 85); 3(n = 78).