Table 2.

General characteristics of participants, by outpatients and inpatients

	Outpatients (n=2293)		Inpatients (n=1510)		p value
	%	n	%	n
Age (Mean±SD)	41.1±17.3		55.7±17.5		< 0.001
Age group (years)					< 0.001
18–24	17.4	398	4.2	64
25–34	28.5	653	10.6	160
35–44	14.7	337	10.7	161
45–54	16.0	368	21.7	327
55–64	10.6	242	18.5	279
≧65	12.9	295	34.4	519
Sex					< 0.001
Men	37.2	854	50.4	761
Women	62.8	1439	49.6	749
Educational level					< 0.001
Primary school and below	18.8	431	40.1	605
Middle school	28.4	652	34.3	518
High school	15.0	344	12.1	183
College and above	37.8	866	13.5	204
Income group					< 0.001
First group	38.7	887	55.0	831
Second group	43.9	1007	33.2	502
Third group	14.8	340	10.0	151
Fourth group	1.5	35	1.0	15
Cannot tell	1.0	24	0.7	11
Self-reported disease seriousness					< 0.001
Not serious	21.8	500	7.9	119
Not very serious	14.9	342	8.1	123
Neither serious nor not serious	38.4	881	19.2	290
Rather serious	21.9	502	44.7	675
Very serious	3.0	68	20.1	303