Risk factors for HIV infection among men who have sex with men in the ANRS IPERGAY PrEP trial

2021 ◽  
pp. sextrans-2021-055199
Author(s):  
Julien Gras ◽  
Marine Pillet ◽  
Guillemette Antoni ◽  
Eric Cua ◽  
Isabelle Charreau ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Practices ◽  
Recreational Drugs ◽  
Anal Sex ◽  
Increased Risk ◽  
Receptive Anal Sex ◽  
Sex With Men ◽  
Hiv Acquisition

ObjectivesWe aimed to assess among men who have sex with men (MSM) risk factors for HIV infection, to identify those who require urgent pre-exposure prophylaxis (PrEP) prescription.MethodsAll participants enrolled in the placebo arm of the ANRS IPERGAY trial, or infected between screening and day 0, were included. Baseline characteristics were described and HIV incidence rate ratios (RRs) were estimated with their 95% CIs.Results203 MSM were included with a median follow-up of 9 months. During the study period, 16 participants acquired HIV infection while not receiving tenofovir disoproxil and emtricitabin (TDF/FTC) over 212.4 person-years (PYs) of follow-up (incidence rate 7.5/100 PYs, 95% CI: 4.3 to 12.2). Being enrolled in Paris was associated with a significant increased risk of HIV infection (RR: 4.1; 95% CI: 1.1 to 28.3). A high number of sexual partners in prior 2 months (≥10 vs <5) and of condomless receptive anal sex episodes in prior 12 months (>5 vs <5) were strong predictors for HIV acquisition (RR: 10.6 (2 to 260.2) and 3.3 (1.2 to 10.2), respectively). Those who reported more often or only receptive sexual practices were also at increased risk (RR: 9.8 (2.0 to 246.6)). The use of recreational drugs in prior 12 months, especially gamma hydroxybutarate/gamma butyrolactone (RR: 5.9; 95% CI: 2 to 21.7), was associated with a significantly increased risk of HIV acquisition even after adjustment for sexual practices.ConclusionsMSM who have frequent condomless receptive anal sex and multiple partners, or use recreational drugs should be targeted in priority for PrEP prescription especially if they live in an area with a high prevalence of HIV infection.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhen Xing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Behaviors ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is associated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex. Methods Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection. Results A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD, practicing RD before sex, the interaction between RD and CRAI using a shower hose for RD and other risk factors, practicing RD after sex, CRAI, using nitrite inhalants, main sexual role with males as bottom and syphilis infection. Conclusions RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that further studies should be conducted to understand the detailed mechanism between RD and increased HIV prevalence.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2021 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Behaviors ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is associated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD, practicing RD before sex, the interaction between RD and CRAI using a shower hose for RD and other risk factors, practicing RD after sex, CRAI, using nitrite inhalants, main sexual role with males as bottom and syphilis infection.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that further studies should be conducted to understand the detailed mechanism between RD and increased HIV prevalence.

scholarly journals Trends and differences in sexual practices and sexually transmitted infections in men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): a repeated cross-sectional study in Melbourne, Australia

BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e037608
Author(s):  
Mario Martín-Sánchez ◽  
Richard Case ◽  
Christopher Fairley ◽  
Jane S Hocking ◽  
Catriona Bradshaw ◽  
...  
Keyword(s):  
Health Centre ◽  
Cross Sectional Study ◽  
Sexual Practices ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Men And Women ◽  
Sexually Transmitted ◽  
Receptive Anal Sex ◽  
Sex With Men

ObjectivesIn the 2010s, there has been an increase in sexually transmitted infections (STI) in men who have sex with men (MSM) in Australia, and since 2015 also in urban heterosexuals. Men who have sex with both men and women (MSMW) have characteristics that may differ from both men who have sex with men only (MSMO) and heterosexual men. We aimed to compare the sexual practices and the trends in HIV/STI positivity between MSMO and MSMW.DesignRepeated cross-sectional study.SettingA sexual health centre in Melbourne, Australia.ParticipantsMSM aged 18 years and above who attended the Melbourne Sexual Health Centre for the first time between 2011 and 2018. This includes 12 795 MSMO and 1979 MSMW.Primary outcome measuresDemographic characterics, sexual practices and HIV/STI positivity.ResultsCompared with MSMW, MSMO were more likely to practice anal sex and to have condomless receptive anal sex with casual male partners, and less likely to have a current regular relationship. Over the 8-year period, there was an increase in condomless receptive anal sex with casual male partners for both groups (MSMO: from 46.2% to 63.3%, ptrend <0.001; MSMW: from 41.3% to 57.9%, ptrend=0.011). Syphilis positivity increased in MSMO (from 5.5% to 7.9%, ptrend=0.012) and MSMW (from 0.9% to 6.4%, ptrend=0.004) and HIV remained stable. Gonorrhoea increased among MSMO from 2011 to 2014 (from 6.7% to 9.6%, ptrend=0.002), and remained stable from 2015 to 2018. MSMO had higher odds of testing positive for gonorrhoea (adjusted OR (aOR) 1.36, 95% CI 1.13 to 1.64), chlamydia (aOR 1.39, 95% CI 1.16 to 1.67), syphilis (aOR 1.74, 95% CI 1.37 to 2.22) and HIV (aOR 4.60, 95% CI 2.43 to 8.70) than MSMW.ConclusionsMSMW have overall lower condomless sex and lower HIV/STI positivity. In the last years, changes in sexual practices in MSM have affected both MSMW and MSMO leading to an increased STI risk.

Time trends in the risk of HIV infection among men who have sex with men in Chiang Mai, Thailand: an observational study

2021 ◽  
pp. 095646242110213
Author(s):  
Amaraporn Rerkasem ◽  
Nuntisa Chotirosniramit ◽  
Pongpun Saokhieo ◽  
Antika Wongthanee ◽  
Kittipan Rerkasem
Keyword(s):  
Hiv Infection ◽  
Hiv Testing ◽  
Consistent Condom ◽  
Anal Sex ◽  
Health Seeking ◽  
Chiang Mai ◽  
Transmitted Infection ◽  
Significant Difference ◽  
Receptive Anal Sex ◽  
Sex With Men

A cross-sectional study on men who have sex with men (MSM) for the HIV prevention project was conducted to assess the prevalence of HIV infection–related behaviors among 551 MSM recruited in 2008–2009 and 1910 MSM in 2014–2018 for voluntary counseling and testing at a HIV clinic in Chiang Mai. Overall, the study found that the prevalence of HIV infection was significantly decreased from 12.9% (71/551) in the earlier study (2008–2009) to 8.2% (157/1910) in the recent study (2014–2018) ( p = 0.001). By comparison, in 2008–2009 and 2014–2018, there was no statistically significant difference in consistent condom use (39.0% [186/477] vs. 38.9% [591/1512], p = 0.969), while unprotected anal sex with casual partners significantly increased (44.5% [159/357] vs. 51.9% [645/1242], p = 0.014) and receptive anal sex significantly increased (37.7% [180/477] vs. 45.1% [860/1905], p = 0.004). However, previous HIV testing within 1 year increased significantly from 64.6% (197/305) to 74.7% (677/906, p = 0.001). In exploratory multivariate analysis, the factors associated with HIV infection included gay men, age below 20 years, being self-employed, being an employee, having only receptive anal sex, having both receptive/insertive anal sex, being a former substance user, using online dating, having a history of sexually transmitted infection symptoms, self-perception as being at high risk for HIV, last HIV testing >1 year, and never previously testing for HIV. The data represent the trend of health-seeking behavior improvements. The findings demonstrated the need for a novel sexual health service in an endemic setting and health promotion for online partner-seeking.

Australian men's sexual practices in saunas, sex clubs and other male sex on premises venues

Sexual Health ◽  
2010 ◽  
Vol 7 (2) ◽  
pp. 186 ◽  
Author(s):  
Anthony Lyons ◽  
Anthony M. A. Smith ◽  
Jeffrey W. Grierson ◽  
Henry von Doussa
Keyword(s):  
Anal Intercourse ◽  
Unprotected Anal Intercourse ◽  
Sexual Practices ◽  
Anal Sex ◽  
Sexually Transmissible Infections ◽  
Younger Men ◽  
Receptive Anal Sex ◽  
Risky Sexual Practices ◽  
Sexual Encounters ◽  
Sex With Men

Background: Sex on premises venues (SOPVs) where men have sex with men have been implicated in the spread of sexually transmissible infections, but few studies have described men’s sexual encounters in SOPVs, particularly the degree to which men from different backgrounds engage in risky sexual practices. Methods: Interviewer administered surveys were conducted with 186 Australian men who have sex with men (MSM) within 48 h of visiting an SOPV. They reported their sexual practices, the characteristics of their partners and other circumstances surrounding their sexual encounters. Results: All analyses were based on the number of sexual encounters (n = 430). Oral sex was the most common practice, occurring in 74.9% of encounters, followed by massage, frottage or kissing (53.7%), solo or mutual masturbation (36.3%), and anal sex (32.1%). Multivariate analyses revealed age as a significant factor for having protected anal sex (P = 0.001), insertive anal sex (P = 0.004) and receptive anal sex (P < 0.001). These practices were more frequent in encounters among younger men, while masturbation (P = 0.03) was more frequent among older men. When men’s sexual partners were affected by alcohol, encounters were less likely to involve unprotected anal intercourse (P = 0.006) and more likely to involve massage, frottage or kissing (P = 0.009). Men disclosed their HIV status in only 7.7% of encounters. Conclusions: With the likelihood of risky sexual practices varying according to background, results from this study should be used to guide interventions aiming to promote safer sex in SOPVs.

scholarly journals The relationship between pornography use and sexual behaviours among at-risk HIV-negative men who have sex with men

Sexual Health ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 166 ◽  
Author(s):  
Lisa A. Eaton ◽  
Demetria N. Cain ◽  
Howard Pope ◽  
Jonathan Garcia ◽  
Chauncey Cherry
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Risk ◽  
Risk Taking ◽  
Sexual Risk Taking ◽  
Intervention Trial ◽  
Anal Sex ◽  
Sex With Men ◽  
The Relationship ◽  
Hiv Negative

Objectives Although pornography is widely available and frequently used among many adults in the USA, little is known about the relationship between pornography and risk factors for HIV transmission among men who have sex with men. Methods: Baseline assessments from a behavioural intervention trial for at-risk men who have sex with men were conducted in Atlanta, GA in 2009. Univariate and multivariate generalised linear models were used to assess the relationships between known risk factors for HIV infection, time spent viewing pornography, and sex behaviours. Results: One hundred forty-nine men reporting HIV-negative status and two or more unprotected anal sex partners in the past 6 months were enrolled in an intervention trial and completed survey assessments. Time spent viewing pornography was significantly associated with having more male sexual partners (B = 0.45, SE = 0.04, P < 0.001) and unprotected insertive anal sex acts (B = 0.28, SE = 0.04, P < 0.001). Moreover, increased substance use (drug use, B = 0.61, SE = 0.14, P < 0.001; alcohol use, B = 0.03, SE = 0.01, P < 0.01) and decreased perception of risk for HIV infection (B = –0.09, SE = 0.04, P < 0.05) were found to be significantly associated with greater time spent viewing pornography. Conclusions: This exploratory study is novel in that it sheds light on the associations between viewing pornography and sexual risk taking for HIV infection. Future studies in this area should focus on understanding how the content of pornography; in particular, the viewing of unprotected and protected sex acts, may affect sexual risk taking behaviour.

scholarly journals The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China

2020 ◽  
Author(s):  
ZhenXing Chu ◽  
Guangquan Shen ◽  
Qinghai Hu ◽  
Hongyi Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Sexual Behaviors ◽  
Interaction Effect ◽  
Anal Intercourse ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Anal Sex ◽  
Cross Sectional ◽  
Increased Risk ◽  
Sex With Men

Abstract Background: Rectal douching (RD) is widely practiced by men who have sex with men (MSM), and is correlated with increased risk of HIV infection. However, the mechanism of how RD increases the risk of HIV infection is not well understood, and there is limited data on RD behavior in MSM practicing anal sex in China. We examine the purpose of RD, its timing in relation to anal sex, the types of RD products used, and risky sexual behaviors among MSM reporting anal sex.Methods: Between August 2017 and December 2018, a cross-sectional study was conducted among adult MSM in Shenyang, China. Data were collected on demographics, sexual behaviors, and RD for the most recent sexual intercourse by means of interviewer-administered face-to-face questionnaires. Blood samples were collected to test for antibodies to HIV and syphilis. Multivariable logistic regression models were used to assess the risk factors associated with HIV infection.Results: A total of 515 eligible MSM participated in this survey (median age: 31 years). During the most recent anal intercourse, 28.3% (146/515) had condomless receptive anal intercourse (CRAI), 21.4% (110/515) practiced serosorting, and more than half (61.6%, 317/515) reported RD before or after anal sex. Of those practicing RD, 96.8% (307/317) conducted RD before sex, while 62.5% (198/317) conducted RD after sex. The douching devices used were primarily shower hoses (85.3%, 262/307), and relatively few MSM used commercial RD products (8.1%, 25/307) before sex. The prevalence of HIV-1 and syphilis was 11.7% and 13.2%, respectively. HIV infection was positively associated with RD (adjusted odds ratio (AOR), 2.8; 95% confidence interval (CI), 1.4-5.5), practicing RD before sex (AOR, 2.3; 95% CI, 1.2–4.3), practicing RD after sex (AOR, 1.8; 95% CI, 1.0–3.1), using a shower hose for RD (AOR, 3.5; 95% CI, 1.1–13.0), CRAI (AOR, 2.9; 95% CI, 1.6–5.5), and an interaction effect of RD and CRAI (AOR = 4.2; 95 % CI, 2.2- 8.1) in the most recent anal intercourse.Conclusions: RD is popular among Chinese MSM. Improper noncommercial RD tools use (such as shower hose), the interaction effect between RD and CRAI associated with HIV infection. Public health workers and the MSM community should publicize scientific knowledge and prevention approaches relating to RD and HIV transmission to MSM. We recommend that cohort studies should be conducted to confirm the causal relationship between RD and acquiring HIV.

HIV, STDs, anal sex and AIDS prevention policy in a northeastern Brazilian city

1998 ◽  
Vol 9 (5) ◽  
pp. 294-298 ◽  
Author(s):  
Daniel Halperin
Keyword(s):  
Public Schools ◽  
Hiv Infection ◽  
Participant Observation ◽  
Aids Prevention ◽  
Sexual Practices ◽  
Prevention Measures ◽  
Prevention Policy ◽  
Anal Sex ◽  
Aids Epidemic ◽  
Sex With Men

Summary: Data on HIV/AIDS, other STDs, and related sexual practices and AIDS prevention measures in Sao Luis, capital of Maranhao state, were collected in MayJuly 1995 using participant-observation fieldwork, including a number of face-toface interviews in addition to archival research, and were updated by correspondence in 1996-1997 and a brief visit in February 1998. In contrast to the continuing severe AIDS epidemic in southern Brazil, public health statistics and public HIV testing recently instituted in Sao Luis suggest that HIV infection has remained largely concentrated among men who have sex with men, as well as a few, though growing number of cases of women evidently infected by such men. However, other STDs are endemic to the region, and could provide an increasing portal of entry for HIV infection. AIDS prevention education programmes have commenced in public schools and elsewhere in Sao Luis, but greater emphasis needs to also be placed on the prevention and treatment of other STDs. As in other regions of Brazil and Latin America, the reportedly common practice of anal sex among heterosexuals also represents a significant yet typically underemphasized risk factor for HIV.

scholarly journals Penile Anaerobic Dysbiosis as a Risk Factor for HIV Infection

mBio ◽  
2017 ◽  
Vol 8 (4) ◽  
Author(s):  
Cindy M. Liu ◽  
Jessica L. Prodger ◽  
Aaron A. R. Tobian ◽  
Alison G. Abraham ◽  
Godfrey Kigozi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Inflammatory Response ◽  
Hiv Infection ◽  
Hiv Risk ◽  
Immune Cells ◽  
Target Cells ◽  
Increased Risk ◽  
Hiv Acquisition ◽  
Hiv Risk Factors

ABSTRACT Sexual transmission of HIV requires exposure to the virus and infection of activated mucosal immune cells, specifically CD4 + T cells or dendritic cells. The foreskin is a major site of viral entry in heterosexual transmission of HIV. Although the probability of acquiring HIV from a sexual encounter is low, the risk varies even after adjusting for known HIV risk factors. The genital microbiome may account for some of the variability in risk by interacting with the host immune system to trigger inflammatory responses that mediate the infection of mucosal immune cells. We conducted a case-control study of uncircumcised participants nested within a randomized-controlled trial of male circumcision in Rakai, Uganda. Using penile (coronal sulcus) swabs collected by study personnel at trial enrollment, we characterized the penile microbiome by sequencing and real-time PCR and cytokine levels by electrochemiluminescence assays. The absolute abundances of penile anaerobes at enrollment were associated with later risk of HIV seroconversion, with a 10-fold increase in Prevotella , Dialister , Finegoldia , and Peptoniphilus increasing the odds of HIV acquisition by 54 to 63%, after controlling for other known HIV risk factors. Increased abundances of anaerobic bacteria were also correlated with increased cytokines, including interleukin-8, which can trigger an inflammatory response that recruits susceptible immune cells, suggesting a mechanism underlying the increased risk. These same anaerobic genera can be shared between heterosexual partners and are associated with increased HIV acquisition in women, pointing to anaerobic dysbiosis in the genital microbiome and an accompanying inflammatory response as a novel, independent, and transmissible risk factor for HIV infection. IMPORTANCE We found that uncircumcised men who became infected by HIV during a 2-year clinical trial had higher levels of penile anaerobes than uncircumcised men who remained HIV negative. We also found that having higher levels of penile anaerobes was also associated with higher production of immune factors that recruit HIV target cells to the foreskin, suggesting that anaerobes may modify HIV risk by triggering inflammation. These anaerobes are known to be shared by heterosexual partners and are associated with HIV risk in women. Therefore, penile anaerobes may be a sexually transmissible risk factor for HIV, and modifying the penile microbiome could potentially reduce HIV acquisition in both men and women.

scholarly journals HIV incidence and sexual behavioral correlates among 4578 men who have sex with men (MSM) in Chengdu, China: a retrospective cohort study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xinyi You ◽  
Stuart Gilmour ◽  
Wangnan Cao ◽  
Joseph Tak-fai Lau ◽  
Chun Hao ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hiv Infection ◽  
Sexual Behaviors ◽  
Incidence Density ◽  
Consistent Condom ◽  
Hiv Incidence ◽  
Inconsistent Condom ◽  
Hiv Prevention Strategies ◽  
Increased Risk ◽  
Sex With Men

Abstract Background The prevalence of HIV among men who have sex with men (MSM) in southwest China is still increasing. This study aimed to investigate the trend in HIV incidence and its associated risk factors among MSM in Chengdu, China. Method Incidence data were collected from the largest local non-governmental organization (NGO) serving MSM in Chengdu between 2012 and 2018, while information on sexual behaviors was collected from 2014. All MSM who received voluntary counseling and testing services (VCT) in the collaborating NGO at least twice during the study period were included. We calculated the HIV incidence density among MSM every 2 years and the overall incidence rate. A Cox proportional hazards regression model was employed to identify risk factors for HIV infection. Result A total of 4578 HIV-negative participants were included in the cohort. The total incidence density was 5.95 (95% CI: 5.37–6.56)/100 person-years (PYs) between 2012 and 2018. The segmented incidence density was 9.02 (95% CI: 7.46–10.78), 5.85 (95% CI: 4.86–6.97), 5.43 (95% CI: 4.53–6.46), and 3.09 (95% CI: 2.07–4.41)/100 PYs in 2012–2013, 2014–2015, 2016–2017, and 2018, respectively. After adjusting for sociodemographic characteristics, compared to participants without sexual partners within 6 months, MSM with one fixed partner (Adjusted Hazard Ratio, AHR = 1.18, 95% CI: 0.44–3.19) and more than five partners (AHR = 2.24, 95% CI: 0.81–6.20) had increased risk of HIV infection. MSM who used condom inconsistently had a higher risk of HIV infection (AHR = 1.87, 95% CI: 1.46–2.38) compared to consistent condom users. Conclusion The decreased HIV incidence density among MSM was potentially related to the successful comprehensive HIV prevention strategies in Chengdu. Multiple male sexual partnerships and inconsistent condom use during anal intercourse were risk factors associated with HIV occurrence.

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