Table 2.

Kappa of agreement for the symptom groups by CAT and CCQ (cutpoint =1.5)

CCQ cutpoint =1.5	CAT
	Groups A and C	Groups B and D	Total
Groups A and C	44	38	82
Groups B and D	22	268	290
Total	66	306	372

Note: Kappa=0.495, moderate agreement.

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