Quality of life of Chinese urban community residents: a psychometric study of the mainland Chinese version of the WHOQOL-BREF

Table 6 Dimensional scores and regression analyses of demographic variables (standardized beta weights)

	Physical	Psychological	Social relationship	Environmental
Means and Range
Guangzhou (N = 1052)
for scales in the Range 4-20	14.56 ± 2.00	13.69 ± 2.23	14.11 ± 2.23	12.33 ± 2.32
for scales in the Range 0-100	66.00 ± 12.56	60.55 ± 13.96	63.21 ± 13.92	52.04 ± 14.53
Taiwan (N = 13083)^a	59.12 ± 13.69	49.43 ± 15.63	56.51 ± 14.28	42.38 ± 14.92
Global (23 countries) (N = 11830)^b	16.20 ± 2.90	15.00 ± 2.8	14.30 ± 3.2	13.50 ± 2.60
Zero-order correlations with demographic background
Sex (Male = 0, Female = 1)	-0.070*	-0.079*	0.014	0.050
Age	-0.250**	-0.095**	-0.094**	0.059
Marital status (unmarried = 0, married = 1)	-0.070*	-0.022	-0.026	0.012
High education (No = 0, Yes = 1)^c	0.177**	0.185**	0.131**	0.106**
Income	0.111**	0.114**	0.078*	0.102**
Employment status (No = 0, Yes = 1)	-0.196**	-0.111**	-0.101**	-0.034
Chronic illness (No = 0, Yes = 1)	-0.221**	-0.062*	-0.078*	0.018
Regression analyses with demographic background ^d (standardized beta)
Sex (Male = 0, Female = 1)	-0.022	-0.064*	0.037	0.044
Age	-0.119**	0.007	-0.007	0.149***
Marital status (unmarried = 0, married = 1)	0.037	0.044	0.017	0.000
High education (No = 0, Yes = 1)^c	0.071*	0.164***	0.114***	0.157***
Income	0.055	0.072*	0.035	0.091**
Employment status (No = 0, Yes = 1)	0.096**	0.051	0.076*	-0.028
Chronic illness (No = 0, Yes = 1)	-0.144***	-0.027	-0.044	-0.007

^a Taiwan data [26]; scores in the range 0-100
^b Global domain data adjusted for age and sex [9] using scales in the range 4-20
^c High education: with a degree, vocational or other training at or above this level
^d Standardized beta in regression equations predicting each quality of life dimension
*p < 0.05, **p < 0.01, ***p < 0.001