Abstract
BackgroundChina experiencing an increasing HIV epidemic among men who have sex with men (MSM), and unprotected anal intercourse (UAI) has played a key role in this process. The aims of this study were to examine the trend of UAI and to explore the factors correlated with UAI among MSM in Guangzhou, China.MethodsData from 2008 to 2013 were retrieved from the annual serological and behavioral surveys system. We collected information on demographic, HIV related sexual behavior with men and women, access to HIV prevention services, and symptoms of sexually transmitted infections. Chi-square test was used to examine the similarity of the participants during the study period. Univariate and multivariate logistic regression were conducted to test the factors associated with UAI. Trend test was used to check the change of UAI in different characteristic stratums during the study period.ResultsIn total, 58.4% (range from 54.5% to 62.0%) of the participants reported that they engaged in UAI in the past six months. Participants who aged less than 20 [Adjusted Odds Ratio (AOR): 2.22, 95% Confidential Interval (CI): 1.07-4.61], only attended elementary school (or less) (AOR: 1.41, 95% CI: 1.04-1.90), cohabiting with male partner (AOR: 2.15, 95% CI: 1.66-2.79), divorced or widowed (AOR: 2.80, 95% CI: 1.54-5.07), did not test for HIV in the past year (AOR: 1.36, 95% CI: 1.12-1.65), and had 10 or more partners in the past six months (AOR: 1.85, 95% CI: 1.18-2.91) had higher odds of UAI. However, the proportions of UAI were stable in different stratums during the study period.ConclusionsThe proportion of MSM engaged in UAI was consistently high during the study period. Effective intervention strategies, which include but not limit to risk reduction counseling and testing services, are urgently needed to bring down the risk behaviors of the MSM in Guangzhou, in order to control HIV/STIs epidemic in this specific population.
Highlights
China experiencing an increasing Human immunodeficiency virus (HIV) epidemic among men who have sex with men (MSM), and unprotected anal intercourse (UAI) has played a key role in this process
The total number of participant recruited annually gradually increased during the study period, even there was a lit bit of wane (Table 1)
UAI was stable among the participants who were aged between 20–29, single, and attended college or above, barring slight fluctuations. In this serial cross-sectional study conducted in Guangzhou, China, we found a high proportion of Men who have sex with men (MSM) engaged in UAI in each year, and this proportion did not change significantly in the past six years
Summary
China experiencing an increasing HIV epidemic among men who have sex with men (MSM), and unprotected anal intercourse (UAI) has played a key role in this process. Men who have sex with men (MSM) continue to lead clandestine risk behaviors while they continue to stay married and have children [2]. Even lots of effort already put, we still confront increasing HIV/AIDS epidemic among MSM [3,4], while other high risk groups have been met with greater success [5]. Targeting intervention could bring down this burden, and there is evidence available on different sexual risk behavior among MSM [4]. It is estimated that the proportion of MSM engaging in high-risk sexual behavior is changing over a period of time [9]. A clear pattern of these changes is yet to be studied in different geographical areas in China
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