Table 1.

Sample Characteristics (N = 418).

Characteristics	Categories	No.	%
Gender	Male	293	70.1
	Female	125	29.9
Age (yr)	18–30	112	26.8
	31–50	265	63.4
	51–70	41	9.8
Marital status	Single	204	49.0
	Married/have stable partner	214	51.0
Employment	Unemployed	199	47.6
	Employed occasionally	82	19.6
Residence	Rural	113	27.0
	Town/city	305	73.0
Education level	Primary education or less	65	15.6
	Middle school	179	42.8
	High school or above	174	41.6
Annual income RMB	0–4999	154	36.8
	5000–19999	147	35.2
	≧ 20000	116	27.8
Drug use	No	301	72.0
	Yes	117	28.0
Time on ART	≦ 1yr or less	232	55.5
	1 yr up to 2yrs	64	15.3
	>2yrs	122	29.2

Note: ART = Antiretroviral therapy; RMB = Renminbi; (yr) = age or time in years.