Skip to main content

Table 3 Means of steps, AEE, PA 3 and PAL across COPD risk groups A-D and GOLD grades I-IV

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

Variable   Steps AEE [cal] PA3[min] PAL [METs]
Classification N Mean ± SD Mean ± SD Mean ± SD Mean ± SD
CAT - Severity grades 78     
A 27 6763.1 ± 4005.1 599.3 ± 477.0 116.3 ± 89.9 1.4 ± 0.3
B 36 4152.6 ± 2571.9 337.2 ± 297.3 76.5 ± 76.9 1.3 ± 0.3
C + D 15 2732.8 ± 1362.5 418.9 ± 295.4 99.1 ± 85.4 1.4 ± 0.3
mMRC – Severity grades 71     
A 40 5971.3 ± 3302.5 460.4 ± 399.1 98.2 ± 84.0 1.4 ± 0.3
B 17 3633.8 ± 2996.1 376.3 ± 343.9 79.9 ± 88.4 1.3 ± 0.3
C + D 14 2811.4 ± 1378.2 426.5 ± 305.0 100.9 ± 88.3 1.4 ± 0.3
CAT - Exacerbations 78     
A 27 6763.1 ± 4005.1 599.3 ± 477.0 116.3 ± 90.0 1.4 ± 0.3
B 42 3923.7 ± 2488.5 344.0 ± 288.8 77.7 ± 76.4 1.3 ± 0.3
C + D 9 2858.3 ± 1439.1 441.3 ± 334.7 108.4 ± 92.1 1.4 ± 0.3
mMRC - Exacerbations 71     
A 43 5794.4 ± 3247.1 469.2 ± 391.5 97.7 ± 84.8 1.4 ± 0.3
B 19 3426.5 ± 2937.7 349.3 ± 322.7 80.2 ± 84.9 1.3 ± 0.3
C + D 9 2858.3 ± 1439.1 441.3 ± 334.7 108.4 ± 92.1 1.4 ± 0.3
GOLD grades 78     
I 22 6191.8 ± 3985.2 496.9 ± 434.8 96.1 ± 97.1 1.3 ± 0.3
II 41 4778.3 ± 3128.5 424.1 ± 388.0 92.1 ± 78.0 1.3 ± 0.3
III 9 3358.1 ± 1436.3 462.1 ± 345.5 116.4 ± 103.2 1.4 ± 0.3
IV 6 1794.8 ± 371.2 354.0 ± 211.7 73.0 ± 44.9 1.3 ± 0.1
  1. AEE, active energy expenditure; CAT, COPD assessment test; COPD, chronic obstructive pulmonary disease; GOLD, Global Initiative for Chronic Obstructive Lung Disease; MET, metabolic equivalent; mMRC, modified Medical Research Council; PAL, physical activity level; PA3, physical activity duration above 3 METs; SD, standard deviation.