Table 1.

Descriptive statistics of the participants (n = 529)

Variables	N	%
Socio-demographic characteristics
Age group (years)
50–59	166	31.4
60–69	262	49.5
≥ 70	101	19.1
Sex
Male	375	70.9
Female	154	29.1
Ethnicity
Han	526	99.4
Minority	3	0.6
Place of residence
Rural	408	77.1
Urban	121	22.9
Education level
Illiterate	86	16.2
Primary school	249	47.1
Junior high school	145	27.4
Senior high school or above	49	9.3
Marital status
Unmarried	29	5.5
Married and living with spouse	270	51.1
Married but not living with spouse	78	14.7
Divorced/Widowed	152	28.7
Employment status
Employed	137	25.9
Retired	73	13.8
Unemployed	319	60.3
Duration of out-migrating for work (years)
None	280	52.9
≤ 10	105	19.8
> 10	144	27.2
Monthly personal income (RMB yuan)
None	42	7.9
< 1000	228	43.2
1000-1999	135	25.5
≥ 2000	124	23.4
Having an HIV-infected spouse
Yes	202	38.1
No	298	56.3
Do not have spouse	29	5.5
Number of children
0	41	7.8
1	241	45.6
2	176	33.3
≥ 3	71	13.4
Disease-related characteristics
Route of HIV transmission
Sexual behavior with spouse	129	24.4
Sexual behavior with a non-spouse opposite-sex partner	345	65.2
Sexual behavior with a same-sex partner	28	5.3
Blood transfusion	27	5.1
Time since diagnosis (years)
< 1	156	29.5
1–3	207	39.1
> 3	166	31.4
Duration on antiretroviral therapy (years)
≤ 2	350	66.2
> 2	179	33.8
Stage of HIV infection
HIV	249	47.1
AIDS	277	52.4
Missing	3	0.5
CD4 count in the most recent episode of testing (cls/μl)
< 200	145	27.4
200–350	167	31.6
351–500	124	23.4
> 500	87	16.4
Missing	6	1.2