Table 2 A table showing the severity score of COPD using the modified Medical Research Council scores, and combined COPD assessment to groups

COPD related characteristics

Variable

Frequency, n (%)

Modified Medical Research Council score

 Grade 0—Breathless with strenuous exercise

3 (6.7)

 Grade 1—Breathless on hurrying on level ground

26 (57.8)

 Grade 2—Walks slower due to breathlessness

13 (28.9)

 Grade 3—Stops for breath after walking for a few minutes

2 (4.4)

 Grade 4—Too breathless to leave the house or breathless on dressing

1 (2.2)

Combined COPD Assessment tool groups

 Group A

25 (55.6)

 Group B

17 (37.8)

 Group C

2 (4.4)

 Group D

1 (2.2)