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Table 1 Characteristics of the 87 study participants

From: Differences in classification of COPD patients into risk groups A-D: a cross-sectional study

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
  1. 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).