HIV and syphilis prevalence trends among men who have sex with men in Guangxi, China: yearly cross-sectional surveys, 2008–2012

BMC Infectious Diseases

Table 4 Logistic regression of HIV infection among men who have sex with men in Guangxi (surveys from all 5 years, 2008–2012)

		Infection	Adjusted odds
Variable	N	n(%)	Ratio OR (95% CI)	P-value
HIV infection by year				0.001
2008	1146	20(1.7%)	1
2009	1351	17(1.3%)	0.72(0.37,1.39)	0.32
2010	1245	40(3.2%)	1.78(1.02,3.12)	0.04
2011	1299	35(2.7%)	1.59(0.90,2.81)	0.11
2012	1280	47(3.7%)	2.06(1.20,3.55)	0.01
Had sex with female in the past six months				0.03
No	4924	135(2.7%)	1
Yes	1372	22(1.6%)	0.60(0.38,0.95)
Current syphilis infection				<0.001
No	5892	118(2.0)	1
Yes	429	41(9.6%)	5.07(3.49,7.37)

Note: Variables of HIV infection by year, had sex with female in the past six months, and current syphilis infection were included in the multivariate model.