Commercial sex and risk of HIV, syphilis, and herpes simplex virus-2 among men who have sex with men in six Chinese cities

Table 4 Factors associated with HSV-2 infection among 3389 Chinese MSM

Characteristic	No. of MSM HSV-2 positive (%)	Crude OR (95% CI)	P-value	AOR (95% CI)	P-value
Commercial sex
NC-MSM	380 (11.8)	Ref.	0.20	Ref.	0.52
MSM-buying	12 (14.1)	1.2 (0.7–2.3)		1.5 (0.7–2.9)
MSM-selling	17 (17.5)	1.6 (0.9–2.7)		1.2 (0.5–2.6)
HIV positive
No	88 (24.2)	Ref.	<0.001	Ref.	<0.001
Yes	321 (10.6)	2.7 (2.1–3.5)		2.3 ((1.8–3.1)
Syphilis positive
No	81 (28)	Ref.	<0.001	Ref.	<0.001
Yes	328 (10.6)	3.3 (2.5–4.4)		2.7 (2.0–3.7)
Age (per year)		1.1 (1.0–1.1)	<0.001	1.0 (1.0–1.1)	<0.001
Married to a woman
No	266 (10.4)	Ref.	<0.001	Ref.	0.61
Yes	143 (17)	1.8 (1.4–2.2)		0.9 (0.7–1.2)
Time living in the study city
>6 months	333 (11.9)	Ref.	0.88	_	_
≤6 months	32 (12.3)	1.0 (0.7–1.5)
Student
No	391 (13.6)	Ref.	<0.001	Ref.	<0.001
Yes	18 (3.5)	0.2 (0.1–0.4)		0.4 (0.2–0.7)
Education
College or above	194 (9.8)	Ref.	<0.001	Ref.	0.37
High school or below	215 (15.3)	1.7 (1.4–2.1)		1.1 (0.9–1.4)
Seeking partners online
No	159 (15.8)	Ref.	<0.001	Ref.	0.28
Yes	247 (10.4)	0.6 (0.5–0.8)		0.9 (0.7–1.1)
Number of male sex partners in past 6 months
0–2	236 (11.1)	Ref.	0.12	Ref.	0.27
3–9	129 (13.3)	1.2 (1.0–1.5)		1.2 (0.9–1.5)
≥10	36 (14.2)	1.3 (0.9–1.9)		1.3 (0.8–1.9)
Drug use in past 6 months
No	278 (11.9)	Ref.	0.88	Ref.	0.64
Yes	93 (11.7)	1.0 (0.8–1.3)		1.1 (0.8–1.4)
UAI in past 6 months
No	154 (11.6)	Ref.	0.54	Ref.	0.19
Yes	255 (12.3)	1.1 (0.9–1.3)		0.9 (0.7–1.1)
Predominant anal sex position
Receptive	134 (11.6)	Ref.	0.35	_	_
Insertive	127 (11.6)	0.9 (0.7–1.1)

ISSN: 1471-2334