Table 1.

Percentages of subjects self-reported problems and means of visual analogue scale (VAS), total and by sex

EQ-5D dimension	The current study						Findings from a national population-based survey in China, 2008 [15]
	Male		Female		Total		Male	Female	Total*
	No.	%	No.	%	No.	%	% (N = 58,163)	% (N = 62,540)	% (N = 120,703)
Mobility
No	604	98.7	707	94.8	1,311	96.5	95.7	94.6	95.1
Moderate	8	1.3	38	5.1	46	3.4	4.0	5.0	4.5
Extreme	0	0.0	1	0.1	1	0.1	0.3	0.4	0.4
Self-care
No	610	99.7	741	99.3	1,351	99.5	97.3	96.6	96.9
Moderate	2	0.3	5	0.7	7	0.5	2.3	3.0	2.7
Extreme	0	0.0	0	0.0	0	0.0	0.4	0.4	0.4
Usual activities
No	596	97.4	723	96.9	1,319	97.1	96.0	94.9	95.4
Moderate	16	2.6	21	2.8	37	2.7	3.3	4.3	3.8
Extreme	0	0.0	2	0.3	2	0.1	0.7	0.8	0.8
Pain/Discomfort
No	486	79.4	537	72.0	1,023	75.3	92.8	89.5	91.1
Moderate	122	19.9	205	27.5	327	24.1	6.9	10.0	8.5
Extreme	4	0.7	4	0.5	8	0.6	0.3	0.5	0.4
Anxiety/Depression
No	305	49.8	287	38.5	592	43.6	94.8	92.9	93.8
Moderate	259	42.3	362	48.5	621	45.7	4.9	6.7	5.8
Extreme	48	7.8	97	13.0	145	10.7	0.3	0.4	0.4
VAS score
	612	69.0 (mean)	746	62.1 (mean)	1,358	65.2 (mean)	80.9 (mean)	79.4 (mean)	80.1 (mean)

Chi-square tests were performed, female patients tended to report more problems in three dimensions, including Anxiety/Depression, Pain/Discomfort and Mobility, when comparing to male patients (all P values < 0.005).

* The percentages of "Total" group were estimated based on the reported findings for males and females with considering each group's sample size.