Table 3.

The relationship between the scores of the CAT, and COPD disease according to the GOLD criteria

GOLD	CAT				Tot
	Low impact	Mod impact	High impact	Very high impact
Stage 1	6	28	21	2	57
Stage 2	1	15	17	1	34
Stage 3	1	2	9	3	15
Stage 4	0	2	4	8	14
Total	8	47	51	14	120
Value of Kappa	136
Significant level	0.001