COPD Assessment Test (CAT)

 

Input
 

	0	1	2	3	4	5
I never cough							I cough all the time
I have no phlegm (mucus) in my chest at all							My chest is completely full of phlegm (mucus)
My chest does not feel tight at all							My chest feels very tight
When I walk up a hill or one flight of stairs, I am not breathless							When I walk up a hill or one flight of stairs, I am very breathless
I am not limited doing any activities at home							I am very limited doing activities at home
I am confident leaving my home despite my lung condition							I am not at all confident leaving my home because of my lung condition
I sleep soundly							I don't sleep soundly because of my lung condition
I have lots of energy							I have no energy at all
	0	1	2	3	4	5

 
Results
 
Important: Inputs must be complete to perform calculation.

 

CAT score		points

 

 

Notes

• For each question, point values range from 0 to 5 points. High CAT scores are associated with high health impact.
• GlaxoSmithKline is the copyright owner of the COPD Assessment Test (CAT). However, third parties will be allowed to use the CAT free of charge. The CAT must always be used in its entirety.^[1]

 
Equations used
 

CAT score = Cough + Phlegm + Chest tightness + Walking + Activity + Confidence + Sleep + Energy

 

 

References

1. Jones PW, Harding G, Berry P, et al. Development and first validation of the COPD Assessment Test. Eur Respir J. 2009 Sep;34(3):648-54.
2. Karloh M, Fleig Mayer A, Maurici R, et al. The COPD Assessment Test: What Do We Know So Far?: A Systematic Review and Meta-Analysis About Clinical Outcomes Prediction and Classification of Patients Into GOLD Stages. Chest. 2016 Feb;149(2):413-425.