Time trends of chest pain symptoms and health related quality of life in coronary artery disease

Table 4 Correlation between chest pain symptoms and three different global measures of health related quality of life (HRQL) respectively to four independent domains of HRQL

n = 202		Spearman Rank	t(N-2)	p-value
EQ-5D _Index	Baseline	-0.58	-10.02	0.000000
	After 1 year	-0.60	-10.53	0.000000
	After 2 years	-0.64	-11.82	0.000000
EQ _VAS	Baseline	-0.48	-7.66	0.000000
	After 1 year	-0.52	-8.64	0.000000
	After 2 years	-0.48	-7.78	0.000000
CHP	Baseline	-0.39	-6.06	0.000000
	After 1 year	-0.45	-7.22	0.000000
	After 2 years	-0.35	-5.33	0.000000
PC _cognitive	Baseline	0.05	0.70	0.48
	After 1 year	0.10	1.39	0.17
	After 2 years	0.09	1.30	0.20
PC _{physical/general}	Baseline	0.41	6.42	0.000000
	After 1 year	0.47	7.45	0.000000
	After 2 years	0.43	6.66	0.000000
PC _social	Baseline	0.11	1.63	0.10
	After 1 year	0.23	3.32	0.001
	After 2 years	0.08	1.14	0.25
PC _emotional	Baseline	0.18	2.65	0.009
	After 1 year	0.21	3.09	0.002
	After 2 years	0.15	2.08	0.04

Spearman Rank Order Correlation between existence and severity of current chest pain symptoms assessed by Canadian Cardiovascular Society classification CCS (0–4) and different measures of health related quality of life
EQ-5D_Index denotes EuroQol 5 Dimension questionnaire transformed to an Index score (0–1)
EQ_VAS denotes EuroQol-VAS instrument (0–1)
CHP denotes the Cardiac Health Profile questionnaire (global mean score)
PC denotes the four independent domains of HRQL calculated from the CHP questionnaire

ISSN: 1477-7525