Table 2. Socio-demographic characteristics of respondents based on recruitment site.

	HIV/AIDS services								P value
	Central		Provincial		District		Total
	N	%	N	%	N	%	N	%
Age groups
18- <25	7	2.5	5	1.8	11	1.9	23	2.0	0.77
25-<30	38	13.7	34	12.5	77	13.2	149	13.2
30- <35	102	36.8	109	39.9	202	34.7	413	36.5
35- <40	65	23.5	69	25.3	174	29.9	308	27.2
40- <45	34	12.3	31	11.4	67	11.5	132	11.7
> = 45	31	11.2	25	9.2	52	8.9	108	9.5
Gender
Male	180	65.0	151	55.3	334	57.3	665	58.7	0.04
Female	97	35.0	122	44.7	249	42.7	468	41.3
Education
<Elementary	41	14.8	78	28.6	113	19.4	232	20.5	<0.01
Secondary	82	29.6	115	42.1	221	37.9	418	36.9
High school	99	35.7	70	25.6	193	33.1	362	32.0
>Vocational	55	19.9	10	3.7	56	9.6	121	10.7
Marital status
Single	46	16.6	43	15.8	80	13.7	169	14.9	0.04
Living with spouse/partner	179	64.6	150	55.0	364	62.4	693	61.2
Divorced/widow	52	18.8	80	29.3	139	23.8	271	23.9
Religion
No	242	87.4	245	89.7	514	88.2	1001	88.4	0.67
Yes	35	12.6	28	10.3	69	11.8	132	11.7
Employment
Unemployed	51	18.4	60	22.0	121	20.8	232	20.5	<0.01
Self-employed	109	39.4	95	34.8	265	45.5	469	41.4
White collar worker	35	12.6	10	3.7	35	6.0	80	7.1
Blue-collar worker	42	15.2	99	36.3	141	24.2	282	24.9
Other jobs	40	14.4	9	3.3	21	3.6	70	6.2
Catastrophic health expenditure within the past 12 months
No	205	74.0	204	74.7	459	78.7	868	76.6	0.22
Yes	72	26.0	69	25.3	124	21.3	265	23.4
	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Monthly household income per capita (in millions of VND)	3.0	3.8	1.4	1.4	2.5	2.7	2.4	2.8	<0.01