Yanming Sun

Untested and undiagnosed: barriers to HIV testing among men who have sex with men Beijing China.

Objectives Undiagnosed HIV presents great potential for the spread of infection. The authors identify the prevalence and correlates of never testing and being unaware of HIV infection in Beijing men who have sex with men (MSM). Methods Cross-sectional biological and behavioural survey using respondent-driven sampling; 500 MSM were included. Results HIV prevalence was 7.2% with 86.1% unaware of their infection; 33.2% had never tested. Never testing was associated with lower educational (adjusted odds ratio (AOR) 1.6, 95% CI (CI) 1.1 to 2.5), living in Beijing for ≤3 years (AOR 1.5, 95% CI 1.0 to 2.3), unprotected anal intercourse with most recent male partner (AOR 1.6, 95% CI 1.0 to 2.4), being unaware of the most recent male partners HIV status (AOR 3.6, 95% CI 2.1 to 6.1) and holding stigmatised attitudes towards persons with HIV (AOR 1.1 per scale point, 95% CI 1.0 to 1.1). Predictors of having undiagnosed HIV infection were being married (AOR 2.4, 95% CI 1.0 to 5.4), living in Beijing for ≤3 years (AOR 3.6, 95% CI 1.5 to 8.4), being unaware of the most recent male partners HIV status (AOR 6.8, 95% CI 0.9 to 51.6) and holding negative attitudes towards safe sex (AOR 1.1 per scale point, 95% CI 1.0 to 1.1). Conclusions Recent attention has focused on HIV prevention interventions that depend upon knowing ones serostatus, including viral load suppression, prevention with positives, pre-exposure prophylaxis and seroadaptation. Until the low level of testing and resulting high level of undiagnosed HIV infection are addressed, these tools are not likely to be effective for MSM in China.

HIV/AIDS-Related Stigmatizing and Discriminatory Attitudes and Recent HIV Testing Among Men Who Have Sex With Men in Beijing

This study assessed the correlates of recent HIV testing and HIV/AIDS-related stigmatizing and discriminatory attitudes among men who have sex with men (MSM) in Beijing, China. A cross-sectional study probed demographics, sexual and drug use behaviors, HIV testing, and prevention services. Of 500 participants, 39.3% recently received a test for HIV. Recent testing was independently associated with expressing lower levels of HIV/AIDS-related stigmatizing and discriminatory attitudes, more male sex partners, no female sexual partners and knowing HIV status of their last male partner. Expressing lower levels of HIV/AIDS-related stigmatizing and discriminatory attitudes was independently associated with recent testing, younger age, and knowing HIV status of their last male partner. This study revealed that HIV/AIDS-related stigmatizing and discriminatory attitudes were common and inversely associated with recent HIV testing. Low levels of testing highlighted the urgent needs to reduce HIV/AIDS-related stigma and discrimination and expand HIV testing among MSM in Beijing.ResumenEl estudio fue evaluar la correlación de los últimos la prueba del VIH y el VIH/SIDA relacionados con las actitudes estigmatizantes y discriminatorias entre hombres que tienen sexo con hombres (HSH) en Beijing, China. Un estudio transversal investigado los datos demográficos, las conductas sexuales y de uso de drogas, pruebas de VIH y servicios de prevención. De 500 participantes, el 39,3% ha recibido recientemente una prueba de VIH. Pruebas recientes se asoció independientemente con la expresión de los niveles más bajos de VIH/SIDA relacionados con las actitudes estigmatizantes y discriminatorias, más parejas sexuales masculinas, no las parejas sexuales femeninas y conocer el estado de VIH de su pareja masculina pasado. Expresar niveles más bajos de VIH/SIDA actitudes estigmatizantes y discriminatorias se asoció independientemente con las pruebas recientes, una edad más joven, y conocer el estado de VIH de su pareja masculina pasado. Este estudio reveló que el VIH/SIDA relacionados con las actitudes estigmatizantes y discriminatorias eran comunes e inversamente asociada con las recientes pruebas de VIH. Los bajos niveles de las pruebas destacó la necesidad urgente de reducir el VIH/SIDA, el estigma y la discriminación y ampliar las pruebas del VIH entre los HSH Beijing.

Behavioral and Serologic Survey of Men Who Have Sex with Men in Beijing, China: Implication for HIV Intervention

We assessed HIV prevalence and associated behaviors and risk factors among men who have sex with men (MSM) in Beijing, China. Five hundred MSM were recruited for a biological and behavioral survey using respondent-driven sampling (RDS) in 2009. Serologic specimens were tested for markers of HIV and syphilis infection. A computer-assisted personal interview (CAPI) administered questionnaire gathered information including demographic characteristics, sexual behaviors, HIV testing, and social norms concerning condom use. The adjusted HIV prevalence was 8.0%, syphilis 22.0%. HIV testing and disclosure was low; only 39.3% had HIV tested in the past 12 months, 49.7% knew their own HIV status and 22.8% knew their last male partners HIV status. HIV infection was associated with syphilis, ever having sex with a woman, not knowing the HIV status of the most recent male partner, and never buying condoms in the past 12 months. Stronger endorsement of positive social norms around condom use strongly and predicted lower prevalence of HIV infection. Compared to surveys of similar design in the recent past, HIV continues to spread rapidly among Beijings MSM. Our results identify points of intervention that, if addressed in time, may still alter the course of the epidemic including the promotion of HIV testing and partner disclosure, syphilis control and particularly changing social norms around condom use.

Alcohol use and HIV risk taking among Chinese MSM in Beijing

BACKGROUND Few studies have used standardized alcohol use measures among men who have sex with men in China. METHODS A cross-sectional study was conducted among MSM in Beijing. A computer-assisted self-administered questionnaire was used to collect demographics, risk behaviors the Alcohol Use Disorders Identification Test (AUDIT). AUDIT uses a cutoff score of ≥ 8 while AUDIT C uses a score of ≥ 4 to classify respondents as problem drinkers. Both include a binge drinking measure. RESULTS A total of 500 participants were recruited using respondent-driven sampling. HIV and prevalence is estimated to be 6.1% (95% CI 3.7, 9.2). Almost half of MSM (42.1%, 95% CI 35.8, 49.0) never had a drink containing alcohol in the past year. 5.0% (95% CI 3.1, 7.0) and 8.8% (95% CI 6.1, 11.6) had AUDIT score ≥ 8 and AUDIT-C score ≥ 4, respectively. Binge drinking was at 11.8% (95% CI 7.9, 16.0). In multivariate models all measures were associated with alcohol during sex, while AUDIT was associated with high level of attitudes and perceptions on safe sex (AOR 0.9, 95% CI 0.9,1.0), AUDIT-C with being older (AOR 3.5, 95%CI 1.4, 8.8), and HIV status (AOR 2.2, 95% CI 1.4, 10.9), and binge drinking with number of male partners (AOR 2.0, 95% CI 1.0, 3.9) and ever having had an HIV test (AOR 1.0, 95%CI 0.9, 1.0). Compared to AUDIT ≥ 8, AUDIT-C ≥ 4 and binge drinking were more suitable in identifying HIV risks related to problem drinking. CONCLUSIONS Findings suggest AUDIT is appropriate for use among MSM in China and reinforces the need for incorporating problem drinking as part of approaches to prevent HIV infection among Chinese MSM.

Changing the Landscape of the HIV Epidemic among MSM in China: Results from Three Consecutive Respondent-Driven Sampling Surveys from 2009 to 2011

This study assessed the changes of HIV incidence and its predictors among Beijings men who have sex with men (MSM). Three consecutive cross-sectional surveys were carried out using a consistent respondent-driven sampling (RDS) approach in 2009, 2010, and 2011, respectively. Structured-questionnaire based interviews were completed with computer-assisted self-administration. Incident infection was examined with BED capture enzyme immunoassay (BED-CEIA). The overall rate of HIV prevalence was 8.0% in the three years (95% confidence interval [CI]: 4.9%–11.2%). The overall rate of BED-CEIA incidence was 7.8/100 person years (PY) (95% CI: 5.5–10.1) with 6.8/100PY (95% CI: 3.4–10.2) in 2009, 11.2/100PY (95% CI: 6.2–16.3) in 2010, and 5.8/100PY (95% CI: 2.4–9.3) in 2011, respectively. Multivariable logistic regression analysis revealed that, compared with HIV-negative MSM, recently infected MSM were more likely to be bisexual (adjusted odds ratio [AOR] = 2.1, 95% CI: 1.1–4.1), live in Beijing ≤3 years (AOR = 2.1, 95% CI: 1.2–4.0), and have a negative attitude towards safe sex (AOR = 1.1 per scale point, 95% CI: 1.0–1.1). This study demonstrated a disturbing rise of HIV infections among Beijings MSM. These findings underscored the urgency of scaling up effective and better-targeted intervention services to stop the rapid spread of the virus.

Measures of condom and safer sex social norms and stigma towards HIV/AIDS among Beijing MSM.

Social norms around condom use and safe sex as well as HIV/AIDS stigma are used to identify persons at higher risk for HIV. These measures have been developed and tested in a variety of settings and populations. While efforts have been undertaken to develop context specific measures of these domains among Chinese MSM, the feasibility of using existing measures is unknown. A survey of MSM, based on respondent-driven sampling, was conducted in Beijing. Existing measures of condom social norms, attitudes towards safer sex and HIV/AIDS stigma were piloted. Internal consistency of all measures was high. As expected higher levels of condom social norms and positive attitudes towards safer sex were associated with condom use. HIV/AIDS stigma and discrimination had a significant relationship with never having an HIV test and lack of discussion of HIV/AIDS with male partners. Correlates of low condom social norms were age, education, employment and resident status. Existing measures of condom social norms, attitudes towards safer sex and HIV/AIDS stigma appear to be appropriate for use among Chinese MSM. Using existing measures as opposed to developing new measures has the potential to expedite investigations into psychosocial correlates of HIV risk behavior.

Mutual HIV disclosure among HIV-negative men who have sex with men in Beijing, China, 2010.

HIV is rising rapidly among Chinese men who have sex with men (MSM). Discussion of HIV status between sexual partners is potentially a key prevention behavior. It is unclear if HIV-negative Chinese MSM talk about HIV and disclose their HIV status with sexual partners. Understanding the correlates of disclosure among this population could provide insight into developing disclosure-based interventions. We conducted a respondent driven sampling based study of 500 MSM in Beijing. A total of 332 men had a previous HIV-negative test result and thus considered themselves to be HIV-negative and were included in our analysis of disclosure. Equal numbers of these men reported talking about HIV and disclosing their HIV status to at least one sexual partner. MSM who disclosed were more likely to be living with a main partner. No other demographic characteristics were associated with disclosure in bivariate analysis. We also used data on up to three sexual partners per participant to examine disclosure on the partnership level. Main partnerships, meeting partners at bars/clubs, sometimes using alcohol before sex in a partnership, and usually having sex at home compared to other venues were associated with disclosure. Using generalized estimating equation analysis to characterize individuals from their partnership data, we found only having at least one main partnership and knowing people who were infected with HIV to be associated with a participant being a discloser. Interventions that wish to harness discussion of HIV and HIV status among Chinese MSM will need to focus on moving these discussions towards having them with casual partners.

Trends of HIV incidence and prevalence among men who have sex with men in Beijing, China: Nine consecutive cross-sectional surveys, 2008-2016

Background Sexual transmission of HIV among men who have sex with men (MSM) increased markedly in China during the past decade. HIV incidence is a critical indicator in HIV surveillance and we use a HIV-1 BED-capture-enzyme immunoassay (BED-CEIA) to examine the incidence among MSM in Beijing from 2008 to 2016. Risk factors related to recent HIV infection were also assessed. Methods Consecutive cross-sectional surveys on MSM were conducted yearly from 2008 through 2016. Demographic and behaviors data were collected. HIV status was determined and HIV positive specimens were tested for recent infection using BED-CEIA. Specimens with ODn values≤0.8 were considered recently infected, HIV incidence rates and prevalence were then calculated. Risk factors associated with recent HIV infection were assessed by univariate and multivariable logistic regression. Results From 2008 to 2016, the numbers of eligible participants in the nine consecutive years ranged from 472 to 616. All the 261 eligible HIV-positive specimens were subjected to recent HIV infection testing. HIV prevalence ranged from 5.0% (3.3%-6.8%) to 10.2% (7.8%-12.7%), and incidence ranged from 1.57% (0.19%-2.95%) to 6.63% (3.65%-9.61%). MSM who never or sometimes used condoms during anal sex with men in the past 6 months (aOR = 1.515, 95%CI: 1.016–2.257, p = 0.041), or having syphilis infection (aOR = 1.561, 95%CI: 0.946–2.575, p = 0.081) were more likely to be recently infected with HIV. Being a Beijing resident (aOR = 0.409, 95%CI: 0.212–0.790, p = 0.008), or having only one male anal sex partner in the past 6 months (aOR = 0.467, 95%CI: 0.220–0.994, p = 0.048) were associated with a lower risk for recent HIV infection. Conclusions The HIV incidence fluctuated among MSM in Beijing. Unprotected anal sex, having multiple sex partners, being a non-registered Beijing resident and having a syphilis infection play important roles in the recent HIV infection. Effective intervention measures for HIV and syphilis control and prevention should be continuously strengthened.

Increased synthetic drug abuse and trends in HIV and syphilis prevalence among female drug users from 2010–2014 from Beijing, China:

The objective of this study was to monitor the trend of addiction drug use and its relationship with sexually transmitted infections (STIs) among female drug users (FDUs). Serial cross-sectional surveys were conducted during 2010–2014 among FDUs in Beijing to collect information on addiction drug usage, sexual behaviors, and STI prevalence. Characteristics were analyzed and compared between traditional and synthetic drug users among FDUs by logistic regression method. A total of 3859 FDUs were surveyed during 2010–2014, with the median age being 32.7 years old. The proportion of synthetic drug users among FDUs increased from 43.7% in 2010 to 70.7% in 2014. Compared with traditional drug users, synthetic drug users were younger (P < 0.001), lacked education (P < 0.001), were unmarried (P < 0.001), and were non-local residents (P < 0.001). No significant difference was found with condom usage during sexual activity between traditional and synthetic drug FDUs. However, the engagement of commercial sexual activities (P < 0.001) and syphilis prevalence (P < 0.001) among synthetic drug users were significantly higher than traditional drug users. Synthetic drug abuse appears to be correlated with commercial sex behavior and higher syphilis prevalence among FDUs. Tailored strategies on health education to curb the prevalence of synthetic drug abuse are urgently needed in Beijing.

HIV prevention services utilization among men who have sex with men that have recently migrated to Beijing

1 Beijing Center for Disease Control and Prevention, Beijing, People’s Republic of China. 2 State Key Laboratory for Infectious Disease Prevention and Control, and National Center for AIDS/STD Control and Prevention (NCAIDS), Chinese Center for Disease Control and Prevention (China CDC), Beijing, People’s Republic of China. 3 San Francisco Department of Public Health, San Francisco, 94102, USA. 4 Department of Epidemiology and Biostatistics, University of California, San Francisco, CA 94105, USA.