Demographic and clinical characteristics.

Table 1: Demographic and clinical characteristics.

	Variables	Number	Percentage (%)
Gender	Male	31	76
Gender	Females	10	24
Relation to tobacco	Smokers	7	17
	Non-smokers	5	12.1
	Ex-smokers	29	70.7
COPD degree	I	0	0
	II	3	7.3
	III	11	26.3
	IV	27	65.9
MRC score	0	5	12.2
	1	18	43.9
	2	16	39
	3	1	2.4
	4	1	2.4
BORG score	0-2	15	36.6
	6-Mar	23	56.1
	>= 7	3	7.3
HADS questionnaire	0-7 anxiety	19	46.3
	0-7 depression	19	46.3
	8-11 anxiety	11	26.8
	8-11 depression	12	29.2
	> 11 anxiety	11	26.8
	> 11 depression	10	24.4
St George respiratory questionnaire score	Total		92.7
	Impact subscale		95.1
	Symptoms subscale		87.8
	Activity subscale		80.5