Table 2.

Disease Characteristics for Patients with COPD

	Subjects with COPD (N=100) n (%)
mMRC dyspnoea score
Grade 0	11 (11)
Grade 1	43 (43)
Grade 2	31 (31)
Grade 3	15 (15)
Grade 4	0
CAT score
Very low impact (0–9)	18 (18)
Medium impact (10–20)	53 (53)
High impact (21–30)	26 (26)
Very high impact (>31)	3 (3)
ABCD classification
Group A	20 (20)
Group B	58 (58)
Group C	8 (8)
Group D	14 (14)

Abbreviations: CAT, COPD assessment test; COPD, chronic obstructive pulmonary disease; mMRC, modified Medical Research Council.