Respiratory symptoms in adults are related to impaired quality of life, regardless of asthma and COPD: results from the European community respiratory health survey

Table 1 Charachteristis of subjects in ECRHS II, and mean physical component summar (PCS) and mental component summary (MCS) values according to the subjects characteristics.

			PCS			MCS
		n	Mean	(SD)	^p	Mean	(SD)	^p
COPD
	GOLD stage I	236	48.7	(9.9)	< 0.001	49.5	(10.4)	0.406
	GOLD stage II	90	46.1	(10.0)		49.6	(10.9)
	GOLD stage III/IV	10	34.6	(11.7)		54.9	(7.4)
Asthma
	No	5368	50.5	(8.8)	< 0.001	50.2	(10.4)	< 0.001
	Yes	598	45.6	(12.0)		48.1	(12.4)
Gender
	Female	3075	49.5	(9.8)	< 0.001	48.9	(11.3)	< 0.001
	Male	2934	50.5	(8.8)		51.2	(9.7)
Age in tertiles
	28-39 years	2000	51.3	(8.3)	< 0.001	49.6	(10.7)	< 0.001
	39.1-47 years	2021	50.2	(8.3)		49.6	(10.8)
	47.1-56.5 years	1988	48.4	(10.3)		50.8	(10.4)
Smoking
	Never	2541	50.4	(9.3)	< 0.001	50.6	(10.3)	< 0.001
	Ex	1678	50.2	(9.0)		50.3	(10.1)
	Current	1737	49.3	(9.7)		48.8	(11.5)
Occupation
	Managers and professionals	1829	51.2	(8.5)	< 0.001	50.0	(10.1)	< 0.001
	Technicians	1115	50.9	(8.3)		50.3	(10.3)
	Other non manual	1492	49.7	(9.6)		49.4	(11.3)
	Manual	1185	48.6	(10.0)		51.1	(10.3)
	Non classified	388	47.6	(11.1)		48.4	(11.9)
Body Mass Index
	< 20	2739	51.3	(8.4)	< 0.001	49.5	(10.7)	< 0.001
	20-24.9	253	50.6	(9.3)		47.8	(11.3)
	25-29.9	2106	49.4	(9.4)		50.9	(10.1)
	30+	773	47.0	(11.0)		50.5	(11.4)
Comorbidity
	No	2750	52.0	(7.5)	< 0.001	51.3	(9.2)	< 0.001
	Yes	1996	47.8	(10.7)		48.0	(12.0)
Atopy
	No	3978	49.9	(9.5)	0.359	49.7	(10.9)	0.064
	Yes	1565	50.2	(9.1)		50.7	(9.9)
Bronchial hyperresponsiveness
	No	3961	50.9	(8.6)	< 0.001	50.3	(10.3)	< 0.001
	Yes	577	48.9	(9.9)		48.0	(11.8)

ISSN: 1477-7525