Table 3.

Kappa of agreement for the symptom groups by CAT and CCQ (cutpoint =1.0)

CCQ cutpoint =1.0	CAT
	Groups A and C	Groups B and D	Total
Groups A and C	7	3	10
Groups B and D	59	303	362
Total	66	306	372

Note: Kappa=0.144, slight agreement.

Abbreviations: CAT, COPD Assessment Test; CCQ, Clinical COPD Questionnaire.