CAT & mMRC score for COPD

CAT score

I never cough

I have no phlegm (mucus) in my chest at all

My chest does not feel tight at all

When I walk up a hill or one flight of stair I am not breathless

I am not limited doing any activities at home

I am confident leaving my home despite my lung condition

I sleep soundly

I have lots of energy

I cough all the time

My chest is completely full of phlegm (mucus)

My chest feels very tight

When I walk up a hill or one flight of stairs I am very breathless

I am very limited doing any activities at home

I am not at all confident leaving my home because of my lung condition

I don't sleep soundly because of my lung condition

I have no energy at all

mMRC (Modified Medical Research Council) Dyspnea Scale

Symptom severity: Walking should be assessed on level ground

I only get breathless with strenous exercise

I get short of breath when hurrying on the level or walking up a slight hill

I walk slow than people of the same age on the level because of breathlessness, or I have to stop for breath when walking on my own pace on the level

I stop for breath after walking about 100 meters or after a few minutes on the level

I am too breathless to leave the house or I am breathless when dressing or undressing

Result

References

Jones PW, Harding G, Berry P, Wiklund I, Chen WH, Kline Leidy N. Development and first validation of the COPD Assessment Test. Eur Respir J. 2009 Sep;34(3):648-54. doi: 10.1183/09031936.00102509. PMID: 19720809.

Surveillance for respiratory hazards in the occupational setting [American Thoracic Society]. Am Rev Respir Dis. 1982 Nov;126(5):952-6. PMID: 7149469.

Venkatesan P. GOLD COPD report: 2025 update. Lancet Respir Med. 2025 Jan;13(1):e7-e8. doi: 10.1016/S2213-2600(24)00413-2. Epub 2024 Dec 5. PMID: 39647487.