Table 4.

Pearson correlation among domain score

Domain	Pearson correlation/regression analysis	G1	G4	Physical health	Psychological health	Social relationship	Environmental health
G1	r	1
	P
G4	r	0.62	1
	P	<0.001
Physical health	r	0.53	0.55	1
	P	<0.001	<0.001
Psychological health	r	0.60	0.62	0.70	1
	P	<0.001	<0.001	<0.001
Social relationship	r	0.49	0.47	0.58	0.61	1
	P	<0.001	<0.001	<0.001	<0.001
Environmental health	r	0.58	0.53	0.68	0.67	0.63
	P	<0.001	<0.001	<0.001	<0.001	<0.001	1

r: Pearson correlation; P: Significance (two-tailed); G1: Overall perception of QOL (range of score: 1-5); G2: Overall perception of general health (range score: 1-5); Domain 1: Physical domain; Domain 2: Psychological domain; Domain 3: Social domain; Domain 4: Environmental domain. QOL: Quality of life