COPD Assessment Test (CAT) Score Calculator

Calculate the COPD Assessment Test (CAT) score to measure COPD symptom impact on daily life.

Cough frequency

Phlegm in chest

Chest tightness

Breathlessness on hills/stairs

Activity limitation at home

Confidence leaving home

Sleep quality

Energy level

How to Use

Rate each of the 8 COPD symptoms from 0 to 5.
Click Calculate to see total CAT score and impact level.

使用例

•COPD follow-up monitoring.
•Treatment response assessment.
•GOLD group classification support.

計算式

CAT Score = sum of 8 items (each 0–5). Total range 0–40. <10=low impact, 10–20=medium, 21–30=high, >30=very high impact.

よくある質問

What is the CAT score?

The COPD Assessment Test measures the impact of COPD symptoms (cough, phlegm, chest tightness, etc.) on daily life, ranging from 0 (no impact) to 40 (maximum impact).

What score indicates high impact?

CAT 21–30 indicates high impact. Above 30 indicates very high impact on quality of life.

Disclaimer

For educational purposes only. Does not replace professional medical evaluation.