Pulmonology · Primary Care
COPD Assessment Test (CAT) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
Complete all required inputs to calculate the score.
Formula inputs
- Cough (0–5)Accepted range: 0 to 5
- Phlegm (0–5)Accepted range: 0 to 5
- Chest Tightness (0–5)Accepted range: 0 to 5
- Breathlessness (0–5)Accepted range: 0 to 5
- Activities (0–5)Accepted range: 0 to 5
- Confidence (0–5)Accepted range: 0 to 5
- Sleep (0–5)Accepted range: 0 to 5
- Energy (0–5)Accepted range: 0 to 5
Primary source
Jones PW et al. Development and first validation of the COPD Assessment Test. Eur Respir J. DOI: 10.1183/09031936.00102509. PMID: 19749109. Scope: CAT sum of eight symptom items scored 0–5 each (total 0–40) for COPD health status impact. (2009)
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