Skip to main content

Table 5 CAT™ and mMRC Dyspnoea Scale in COPD and non-COPD population

From: The prevalence, burden and risk factors associated with chronic obstructive pulmonary disease in Commonwealth of Independent States (Ukraine, Kazakhstan and Azerbaijan): results of the CORE study

 

Ukraine

Kazakhstan

Azerbaijan

 

Non-COPD

COPD

Non-COPD

COPD

Non-COPD

COPD

CAT™ total score

 median [25–75-percentiles]

2 [0–6]

6 [2–13]

2 [0–5]

4 [2–9]

3 [0–8]

8 [2–14]

 p-valuea

0.003

< 0.001

0.004

mMRC grade, %

 Grade 0

79.4%

50.0%

70.0%

49.2%

75.2%

45.7%

 Grade 1

16.1%

43.3%

25.5%

36.5%

22.2%

34.3%

 Grade 2

2.4%

6.7%

3.7%

6.3%

1.7%

11.4%

 Grade 3

0.9%

0.0%

0.6%

6.3%

0.4%

8.6%

 Grade 4

0.4%

0.0%

0.0%

0.0%

0.0%

0.0%

 Missingb

0.8%

0.0%

0.2%

1.6%

0.0%

0.0%

p-valuea

< 0.001

< 0.001

< 0.001

  1. atwo-sided Mann-Whitney U test for a comparison between COPD and non-COPD populations
  2. bRespondents with ‘missing’ are not included in calculating p-values
  3. COPD population: respondents with COPD diagnosed by spirometry (post-dose FEV1/FVC < 0.70)
  4. Non-COPD population: respondents without COPD diagnosed by spirometry (post-dose FEV1/FVC ≥ 0.70)
Back to article page

BMC Pulmonary Medicine

ISSN: 1471-2466

Contact us