Correlates of HIV infection among transgender women in two Chinese cities

Effects of HIV Self-Testing on Testing Promotion and Risk Behavior Reduction Among Transgender Women in China: Randomized Controlled Trial

BACKGROUND

To date, no randomized controlled trials have specifically addressed behavior changes after HIV self-testing (HIVST) among transgender women.

OBJECTIVE

This study aims to evaluate the effects of HIVST on changes in HIV testing behavior, frequency of condomless sex, and partner numbers among transgender women in China.

METHODS

Participants were recruited from 2 Chinese cities using both online and offline methods. Transgender women were randomly assigned to receive an HIVST intervention. Data from the previous 3 months were collected at baseline, 3 months, and 6 months. The primary outcome was the mean change in the number of HIV tests among transgender women during the 6-month follow-up. An intention-to-treat analysis was conducted. The statistical analysis used analysis of covariance and linear mixed-effects models.

RESULTS

From February to June 2021, and 255 transgender women were recruited, of which only 36.5% (93/255) had a steady job, and 27.1% (69/255) earned less than US $414.9 of income per month. They were randomly assigned to the intervention (n=127) and control (n=128) groups. At 6 months, the mean number of HIV tests was 2.14 (95% CI 1.80-2.48) in the intervention group and 1.19 (95% CI 0.99-1.40) in the control group (P<.001), with increases of 0.84 (95% CI 0.54-1.14) and 0.11 (95% CI -0.19-0.41) over 6 months, respectively. The net increase was 0.73 (95% CI 0.31-1.15; P<.001), with a similar adjusted result. No significant differences in the frequency of condomless sex or partner numbers were observed between the 2 groups.

CONCLUSIONS

HIVST is an effective strategy for enhancing regular HIV testing behavior among transgender women in China. This strategy should be combined with measures to address the financial vulnerability of the transgender women community to reduce subsequent risk behaviors, including condomless sex.

TRIAL REGISTRATION

Chinese Clinical Trial Registry ChiCTR2000039766; https://www.chictr.org.cn/showproj.html?proj=61402.

Chemsex and Beyond: A Study of Factors Associated with Substance Use Among Men Who Have Sex with Men and Transgender Women in Southern Vietnam to Develop Informed HIV and STI Prevention and Intervention Programs

Background

Amphetamine-type stimulant (ATS) use is a major public health concern among men who have sex with men (MSM) and transgender women (TGW) in communities worldwide and in Vietnam.

Methods

A cross-sectional study was conducted on 1000 adult MSM and TGW from 9 community-based organizations in southern Vietnam from March to August 2019. Data on demographics, sexual behaviors, STIs, HIV infection, and substance use were collected with a self-administered questionnaire including the ASSIST tool. Blood and urine samples were collected for HIV and ATS testing.

Results

The prevalence of lifetime ATS use in the previous three months was 50.5% and 49.4%, respectively. Multivariable analyses showed that ATS use was significantly associated with sex with a transactional partner (aOR [29] = 3.06, 95% CI = 2.13-4.39) who engaged in sex and got paid for it (aOR = 2.78, 95% CI = 1.64-4.73), and purchasing sex (aOR = 2.34, 95% CI = 1.06-5.16). The role in sex with a partner with significant association was 'insertive and receptive equally vs. insertive only' (aOR = 1.78, 95% CI = 1.14-2.76).

Conclusion

ATS use is associated with many sexual behaviors that could be associated with an increased risk of HIV transmission among MSM and TGW populations.

Trends in HIV Prevalence, Sexual Behavior, and Pre-Exposure Prophylaxis Willingness Among Transgender Women: An Analysis of Three Cross-Sectional Studies Conducted Mainly in Shenyang, China, 2014-2019

Purpose

Although transgender women (TGW) bear the highest HIV burden worldwide, routine surveillance of this group is rare. We aimed to evaluate the trends in health characteristics of Chinese TGW.

Methods

Three cross-sectional studies using snowball sampling were conducted in 2014, 2017, and 2019, primarily in Shenyang, China. A questionnaire and voluntary HIV testing were used to obtain information on background characteristics, sexual behaviors, pre-exposure prophylaxis (PrEP) willingness, and HIV status.

Results

There were 220 respondents in 2014, 198 in 2017, and 247 in 2019 (average age 31.1±7.6 to 33.5±9.6 years). HIV prevalence significantly decreased from 29.5% (95% confidence interval [CI]: 25.3-38.4%) in 2014 to 19.4% (95% CI: 14.7-24.9%) in 2019 (p<0.05). The proportion of participants reporting condomless anal intercourse (CAI) with any partner fluctuated from 30.8% (95% CI: 25.1-36.1%) to 53.0% (95% CI: 45.8-60.1%). The proportion of participants willing to use PrEP decreased from 86.4% (95% CI: 81.1-90.6%) in 2014 to 62.8% (95% CI: 56.4-68.8%) in 2019. Factors significantly associated with HIV infection were CAI with any partner (multivariate odds ratio [ORm]: 3.58, 95% CI: 1.55-8.29 in 2017; ORm: 3.18, 95% CI: 1.56-6.46 in 2019) and PrEP willingness (ORm: 0.26, 95% CI: 0.12-0.58 in 2017).

Conclusion

HIV prevalence and associated risk factors remain substantial among Chinese TGW. There is an urgent need to strengthen HIV surveillance in this population, and develop trans-friendly and effective interventions to minimize HIV prevalence and transmission.

Measurement Instruments Assessing Multi-Faceted Stigma Regarding Sexual and Gender Minorities: A Systematic Review of Psychometric Properties

Stigma against sexual and gender minorities (SGM) populations has serious negative health effects for SGM populations. Despite the growing need for accurate stigma measurement in SGM, there are insufficient valid measurement instruments. Moreover, the lack of consistency in construct usage makes comparisons across studies particularly challenging. A critical review and comparative evaluation of the psychometric properties of the various stigma measures for SGM is necessary to advance our understanding regarding stigma measurement against/among SGMs. Based on the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, a comprehensive search was conducted in 4 bibliographic databases (MEDLINE, PsycINFO, CINAHL, and Web of Science) for empirical articles published from 2010 to 2022 that evaluated the psychometrics properties of measurement instruments assessing stigma against SGMs. The screening, extraction, and scoring of the psychometric properties and methodological quality of selected instruments were performed by following the established standards and COSMIN (Consensus-based Standards for the selection of health Measurement Instruments) checklist, respectively. Of the 2031 studies identified, 19 studies were included that reported psychometric properties of 17 measurement instruments. All instruments, except two, were developed for SGMs (n = 15/17). Most instruments included men who have sex with men (MSM) or gay men (n = 11/15), whereas less than half of the instruments assessed stigma among SGM women (n = 6/15). Internal consistency (Cronbach's alpha) and content validity was reported for all instruments (n = 17); construct and structural validity was also reported for majority of the instruments (n = 15 and 10, respectively). However, test-retest reliability and criterion validity was reported for very few instruments (n = 5 each). Based on the COSMIN checklist, we identified the most psychometrically and methodologically robust instruments for each of the five stigma types: combined stigma, enacted stigma, internalized stigma, intersectional stigma, and perceived stigma. For each stigma type, except anticipated stigma, at least one instrument demonstrated strong promise for use in empirical research; however, the selection of instrument depends on the target population and context of the study. Findings indicated a growing use of instruments assessing multiple stigma types. Future studies need to develop intersectional stigma instruments that account for the multiple and intersecting social identities of SGMs. Additionally, most existing instruments would benefit from further psychometric testing, especially on test-retest reliability, criterion validity, adaptability to different LGBTQIA + populations and cultures.

The impact of HIV self-testing on risk behaviors among men who have sex with men: a mixed-methods study

Background

Men who have sex with men (MSM) have a high prevalence of HIV and a low rate of HIV testing in China. HIV self-testing (HIVST) presents a viable strategy for expanding HIV testing among MSM. However, the impact of HIVST on risk behaviors among MSM remains controversial. Our study sought to ascertain this impact.

Methods

From April 2021 to January 2022, a mixed-methods study was conducted in Qingdao City, employing both quantitative and qualitative methodologies. The quantitative component entailed a cohort study among MSM who had used HIVST. Generalized estimating equations fitting Poisson regressions were used to analyze the changes in risk behaviors of MSM in short time after HIVST (ST-HIVST) and longer time after HIVST (LT-HIVST) compared to before HIVST. Subsequently, we conducted in-depth interviews with 18 MSM who completed the follow-up to delve deeper into the impact of HIVST on MSM.

Results

A total of 410 MSM were recruited in the cohort, of whom 83 were lost to follow-up. Compared to before HIVST, there were no significant changes in risk behaviors in ST-HIVST (p > 0.05), while the proportion of recreational drugs abuse (20.7% vs. 33.3%), commercial sex (14.6% vs. 22.9%), and unprotected anal sex (95.9% vs. 98.5%) increased significantly in LT-HIVST (p < 0.05). Specific changes varied across demographic characteristics. According to qualitative interviews, MSM might have decreased risk perception and increased risk behaviors after HIVST.

Conclusion

The use of HIVST may promote MSM to engage in risk behaviors. In the future, customized HIVST promotion programs need to be developed to expand HIV testing among MSM and simultaneously control their risk behaviors.

Poppers use and HIV infection-a literature review

INTRODUCTION

During the HIV surge in the 1980s, inhaled volatile nitrites (poppers) were hypothesized as a possible cause of the AIDS. Later it was found that poppers use was not the cause but rather a marker associated with HIV acquisition and sexual behaviors without the use of prevention tools.

OBJECTIVES

This article reviews the available literature regarding the association between poppers use and newly acquired HIV, aiming to support the hypothesis that there is no causal association between nitrites use and HIV transmission and to discuss other contributing factors.

METHODS

We searched all studies published until March 2022 that discussed poppers use and HIV. We extracted relevant information, such as authors and publication year, country where the study was conducted, study design, characteristics of the population, number of participants, objectives of the study, methods, results, and limitations.

RESULTS

The search identified 1956 abstracts, and 1915 were excluded after title review. Forty-one abstracts were assessed, and 17 studies met the inclusion criteria. The majority of the studies found an association between nitrites use and HIV transmission. Four studies associated HIV transmission with sexual behavior without the use of prevention tools, and 5 articles associated nitrites use with this kind of sexual behavior.

CONCLUSIONS

Our findings show a complex association among nitrites use, sexual behaviors without the use of prevention tools, and sexually transmitted infections; furthermore, it is impossible to make causal inferences between poppers use and HIV disease. The data suggest that it is vital to consider this substance use when planning health policies for specific populations, such as men who have sex with men, focusing on harm reduction strategies, psychoeducation, and orientations on sex with the use of prevention tools.

CLINICAL TRIAL REGISTRATION

PROSPERO CRD42020181437. https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=181437.

Understanding Women's Knowledge, Awareness, and Perceptions of STIs/STDs in Asia: A Scoping Review

OBJECTIVE

This study aimed to conduct a scoping review to collect current literature on the knowledge, awareness, and perception (KAP) of sexually transmitted infections/diseases (STIs/STDs) among women in Asia.

METHODOLOGY

The PRISMA-Scoping methodology was used in this study to extract papers from four databases published between 2018 and 2022. Sixty-eight articles were included after screening and elimination.

RESULTS

The studies on KAP of STIs/STDs among women were largely undertaken in Southeast Asia (Indonesia, Malaysia, and Vietnam) and South Asia (India, Pakistan, and Bangladesh). Regardless of the specific cohort of women studied, research indicates consistently low levels of knowledge and awareness across Asia. This trend seems to be more prevalent among female commercial sex workers, women with lower educational levels, and those in poorer socioeconomic positions. In South Asia, cultural, sociological, economic, and gender inequalities, particularly male domination, all have a significant impact on KAP levels.

CONCLUSION

As education is a major factor that influences health behaviour, this review underscores the need to allocate more resources to educational initiatives, particularly targeting vulnerable groups such as sex workers, transgender women, pregnant women, and rural housewives. This strategic focus may contribute significantly to preventing STIs/STDs, particularly in less developed regions/countries.

Impact of Social Media Use on HIV Testing and Related Mediator among Men Who Have Sex with Men in Shandong Province, China

In China, HIV testing is the important first step of HIV prevention and treatment cascades but is not widely adopted by men who have sex with men (MSM). However, social media has been increasingly used to promote and improve HIV testing. This study aimed to assess the impact of social media use on HIV testing and explore the mediator in the relationship between social media and HIV testing. The authors conducted a cross-sectional study among 935 MSM participants in 11 cities in Shandong Province from 14 September to 6 December 2020. Multivariable regression was conducted to assess the relationship between social media use and HIV testing uptake, and mediation analysis was used to assess the mediation effect of HIV testing self-efficacy in the relationship between social media use and HIV testing. The present study findings showed that social media use was related to HIV testing (aOR = 3.024, 95% CI: 1.869, 4.892) and HIV self-testing uptake (aOR = 1.894, 95% CI: 1.228, 2.922), but was not related to HIV facility-based testing (aOR = 1.709, 95% CI: 0.806, 3.625, p = 0.162). A mediation effect of HIV testing self-efficacy was found between social media use and HIV testing (indirect effect: 0.13, 95% CI: 0.01, 0.29), facility-based testing (indirect effect: 0.05, 95% CI: 0.003, 0.16), and self-testing uptake (indirect effect: 0.07, 95% CI: 0.01, 0.16). Social media could be an effective tool to improve HIV testing, and healthcare providers should pay more attention to HIV testing self-efficacy in HIV testing promotion.

Feasibility of communication platforms to empower transgender cultural competence among human immunodeficiency virus screeners: A qualitative analysis

Background

Human immunodeficiency virus (HIV) screeners have limited experience of interacting with trans people. The application of communication platforms between them to empower HIV screeners' trans-related cultural competence remains unknown.

Objective

This study aims to qualitatively explore the follow-up interviews of HIV screeners regarding their opinions on the feasibility of an online platform group discussion and web page to enhance communication between them and trans people and to explore their perspectives on how these components enhanced their promotion of cultural competence.

Methods

This study was conducted between October 2020 and June 2021. Purposive and snowball sampling were applied to recruit 6 trans persons and 11 HIV screeners. Six online platform group discussions were held on weekday evenings, each group meeting for 60 min, 360 min in total within 3 months, via a video chat room of Google Meet; this was supplemented by a closed web page. The major results were presented through content analysis of the HIV screeners' follow-up interviews.

Results

The HIV screeners identified the facilitators of participating in the communication platforms, which included a reminder message, easy-to-use interface, visible-audible and readable interaction, recalled and reviewable content and group belonging; the barriers included time and space limitation, device restrictions and operation problem. Two categories of trans-related cultural competence - trans awareness and action taken - were revealed, from which five major themes emerged: provoked to ask questions, improved cognition, reflection, trans-sensitive communication and self-enhancement.

Conclusion

The results revealed that the communication platforms could facilitate the mutual and vivid discussion between HIV screeners and trans people and empower the trans-related cultural competence of HIV screeners. The highly feasible intervention design of this research can be applied to digital training courses related to gender diversity issues.

Psychosocial Problems and Condomless Anal Sex among Transgender Women in Two Cities of China: Study Based on the Syndemic Framework

Studies examining the association between psychosocial problems and condomless anal sex (CAS) among transgender women (TGW) are rare. In this study, close attention was paid to the effect of co-occurring psychosocial problems on sexual risk behaviors. A cross-sectional study, including 247 TGW, was conducted in Kunming and Shenyang, China. The prevalence of condomless anal sex among TGW in the previous 6 months was 30.8%. Most of the psychosocial factors were associated with one another in bivariate logistic regression models. Low self-esteem (ORm = 2.99, 95% CI = 1.25-7.18), sexual compulsivity (ORm = 2.13, 95% CI = 1.13-4.00), and intimate partner violence (ORm = 2.21, 95% CI = 1.19-4.11) were discovered to be related to condomless anal sex in the multivariate regression model. No significant interactive effects of the syndemic factors on condomless anal sex were detected. More programmatic and effective HIV prevention interventions targeting psychosocial problems are required to reduce HIV infection within the population.

HIV incidence and risk factors among transgender women and cisgender men who have sex with men in two cities of China: a prospective cohort study

Background

HIV epidemic among men who have sex with men (MSM) remains a major public health concern in China. Despite a growing body of research on transgender women worldwide, little is known about Chinese transgender women within MSM. We sought to estimate HIV incidence and distinguish risk factors of HIV acquisition among them from that among cisgener (non-transgender) MSM (cis-MSM).

Methods

We conducted an open cohort study among Chinese MSM, including those who were identified as transgender in Shanghai and Tianjin. Participants were initially recruited by local community-based organizations from January to June, 2016, and were followed up approximately every 6 months until June 2018. At each visit, a structured questionnaire was used to gather information on demographics, sexual risk behaviors, and HIV status. HIV incidence was calculated as the number of seroconversions divided by total number of person-years of follow-up among HIV-negatives at baseline. Risk factors of HIV acquisition were assessed by univariate and multivariate Cox regression models with time-dependent variables.

Results

A total of 1056 participants contributed 1260.53 person-years (PYs) of follow-up, 33 HIV seroconversions occurred during the follow-up period, yielding an estimated HIV incidence of 2.62 (95% CI 1.80–3.68) per 100 PYs. HIV incidence among transgender women was 4.42 per 100 PYs, which was significantly higher than that of 1.35 per 100 PYs among cis-MSM, demonstrating a threefold higher odds of HIV infection than cis-MSM. For transgender women, those lived locally ≤ 2 years (adjusted hazard ratio [aHR] = 1.76, 95% CI 1.13–2.76) and unprotected anal sex last time (aHR = 4.22, 95% CI 1.82–9.79) were more likely to acquire HIV. For cis-MSM, factors associated with HIV acquisition were frequency of anal sex ≥ 3 times in past one month (aHR = 4.19, 95% CI 1.06–16.47) and unprotected anal sex last time (aHR = 5.33, 95% CI 1.52–18.73).

Conclusions

Compared to cis-MSM, transgender women were at higher risk of HIV acquisition, highlighting an urgent need of tailored prevention. Future HIV program should consider to include them to ensure that this population in China are not left behind.

Graphical abstract

Supplementary Information

The online version contains supplementary material available at 10.1186/s40249-022-00947-3.

The worldwide burden of HIV in transgender individuals: An updated systematic review and meta-analysis

Introduction

Transgender individuals are at risk for HIV. HIV risks are dynamic and there have been substantial changes in HIV prevention (e.g., pre-exposure prophylaxis [PrEP]). It is thus time to revisit HIV prevalence and burden among transgender individuals. The objective of this systematic review and meta-analysis was thus to examine worldwide prevalence and burden of HIV over the course of the epidemic among trans feminine and trans masculine individuals.

Methods

We conducted an updated systematic review by searching PsycINFO, PubMed, Web of Science, and Google Scholar, for studies of any research design published in in a peer-reviewed journal in any language that reported HIV prevalence among transgender individuals published between January 2000 and January 2019. Two independent reviewers extracted the data and assessed methodological quality. We then conducted a meta-analysis, using random-effects modelling, to ascertain standardized prevalence and the relative burden of HIV carried by transgender individuals by country and year of data collection, and then by geographic region. We additionally explored the impact of sampling methods and pre-exposure prophylaxis (PrEP).

Results

Based on 98 studies, overall standardized HIV prevalence over the course of the epidemic, based on weights from each country by year, was 19.9% (95% CI 14.7% - 25.1%) for trans feminine individuals (n = 48,604) and 2.56% (95% CI 0.0% - 5.9%) for trans masculine individuals (n = 6460). Overall OR for HIV infection, compared with individuals over age 15, was 66.0 (95% CI 51.4–84.8) for trans feminine individuals and 6.8 (95% CI 3.6–13.1) for trans masculine individuals. Prevalence varied by geographic region (13.5% - 29.9%) and sampling method (5.4% - 37.8%). Lastly, PrEP effects on prevalence could not be established.

Conclusion

Trans feminine and trans masculine individuals are disproportionately burdened by HIV. Their unique prevention and care needs should be comprehensively addressed. Future research should further investigate the impact of sampling methods on HIV prevalence, and monitor the potential impact of PrEP.

Violence Victimization and Condomless Anal Intercourse Among Transgender Women in China: Mediating Role of Depression

Transgender women (TGW) worldwide report disproportionate violence victimization, depression and condomless anal intercourse (CAI), but the mechanism of the coexistence remains unclear. Using snowball sampling, we recruited 198 self-identified TGW in Shenyang, China between April 2017 and July 2017, and conducted confidential questionnaire survey among them. Positive HIV status was reported by 49 (24.7%) participants. 117 (59.1%) reported at least one type of lifetime violence victimization, with transactional sexual partners being the main violence perpetrators. 108 (54.5%) reported mild to severe depression. 105 (53.0%) reported having CAI with their sexual partners during the last 6 months. Path analysis showed that the association between participants' violence victimization and CAI was fully mediated by their depression (indirect effect: 0.083, p = 0.014; direct effect: 0.137, p = 0.121). We suggest to incorporate violence screening and prevention and mental health services into intervention strategies to prevent CAI among Chinese TGW.

Prevalence and associated factors of sexualized drug use in sex work among transgender women sex workers in China

Sexualized drug use (SDU) is associated with a higher risk of HIV transmission. There is a dearth of study investigating the association between sex work characteristics and SDU in sex work among transgender women sex workers. To address these gaps, we conducted a secondary analysis of a cross-sectional study among 220 transgender women sex workers in Shenyang, China. The prevalence of SDU in sex work was 20.9% in the past month. After adjustment for age, HIV status, education, monthly income and duration of stay in Shenyang, performing sex work mainly in hotel rooms, charging higher per episode of commercial sex, depressive symptoms and anxiety symptoms were associated with higher likelihood of SDU in sex work. Future SDU prevention programmes SDU targeting transgender women sex workers should focus on those who charged higher and performed sex work in hotel rooms, and integrate mental health promotion as an essential component.

Strategies for engaging transgender populations in HIV prevention and care

PURPOSE OF REVIEW

Transgender (trans) populations are heavily impacted by HIV, yet face structural, social, and individual barriers to engagement in HIV prevention and care. In this review, we summarize the data on barriers and facilitators and discuss evidence-informed strategies to facilitate access to and engagement in HIV prevention and care by trans communities.

RECENT FINDINGS

Intersectional stigma and discrimination at structural, community, individual levels present substantial impediments to HIV prevention and optimal care. Access to gender-affirming health care is a priority for trans communities. Where trans communities are highly networked, these networks may provide a strong infrastructure for disseminating HIV innovations and reaching individuals who are not engaged in HIV services. Efforts to engage trans people in HIV prevention and care must address stigma, provide gender-affirming services, and build on community strengths and priorities to ensure trans populations achieve maximum benefit from advances in HIV prevention and care.

SUMMARY

Combination approaches that respond to the complex drivers of HIV in trans communities represent promising strategies for engaging trans people and their partners in HIV prevention and care.

Information-Motivation-Behavioral Skills model of consistent condom use among transgender women in Shenyang, China

BACKGROUND

The Information-Motivation-Behavioral Skills (IMB) model has received consistent empirical support in the context of HIV prevention among various key populations, but not yet among transgender women (TGW). None effective interventions has been carried out among TGW so far to control their high prevalence of unprotected anal intercourse. The intent of the current study is to examine the application of the IMB model to clarifying the association between condom use correlates and condom use frequency among TGW in China.

METHODS

Using snowball sampling, we recruited 198 self-identified TGW in Shenyang, China from April 2017 to July 2017. Participants were required to complete a questionnaire assessing their background characteristics and IMB model constructs. Structural equation modeling (SEM) was conducted to demonstrate the utility of the IMB model.

RESULTS

The consistent condom use (CCU) rate was 47.0%. Results of SEM indicated that HIV-preventive motivation (comprising condom use attitude and subjective norms; β = 0.823, P <  0.001) and behavioral skills (including condom use skills and self-efficacy; β = 0.979, P = 0.004) were related to more frequent condom use, whereas HIV knowledge was unrelated to condom use (β = 0.052, P = 0.540).

CONCLUSIONS

The low CCU rate suggested that TGW in China were at high risk of HIV infection and transmission and a key intervention population. HIV-preventive interventions for this population should focus on enhancing motivation and strengthening behavioral skills to increase condom use frequency and reduce HIV infection.

A qualitative descriptive analysis of effects of psychedelic phenethylamines and tryptamines

OBJECTIVE

The number of novel psychedelic phenethylamines and tryptamines has continued to increase, but little academic research has focused on the effects of these substances. We sought to determine and compare the subjective effects of various substances.

METHODS

We conducted in-depth interviews with 39 adults (75.4% male and 87.2% White) who reported experience using psychedelic phenethylamines and/or tryptamines. Participants described the effects of compounds they have used. We examined the subjective drug effects in a qualitative descriptive manner.

RESULTS

Participants reported on the use of 36 compounds. The majority (64.1%) reported the use of 2C series drugs, with 2C-B use being most prevalent; 38.5% reported the use of NBOMe, and 25.6% reported the use of DOx. With regard to tryptamines, 46.2% reported use, and 4-AcO-DMT was the most prevalent drug used in this class. 2C-B was often described as being more favorable than other 2C series compounds with the effects described as being comparable with MDMA and LSD. NBOMe effects were generally described in an unfavorable manner, and the effects of DOx were often described as lasting too long (12-36 hr). The effects of 4-AcO-DMT were often described as mimicking psilocybin.

CONCLUSION

Knowing the effects of various compounds can inform education, prevention, and harm reduction efforts regarding the use of these drugs.

History of the HIV Epidemic in China

PURPOSE OF REVIEW

This study aims to review the history of the human immunodeficiency virus (HIV) infection epidemic in China.

RECENT FINDINGS

The HIV infection epidemic in China has evolved significantly over the past 35 years, from initially exclusively within people who inject drugs (PWID), to outbreaks due to plasma collection contamination in the mid-1990s, to now almost exclusive transmission via sexual contact. The number of newly-diagnosed cases and the number HIV-related deaths have increased each year since 2004, coinciding with a massive scale-up of both HIV testing and antiretroviral therapy initiation. The proportion of cases diagnosed later in their disease progression has remained constant. The initial outbreaks of HIV across China were identified quickly and the overall trends have been monitored. While the HIV epidemic among PWID has been well managed, the growing HIV epidemic via sexual contact has grown more complex and even more difficult to control.

High HIV prevalence and associated risk factors among transgender women in China: a cross-sectional survey

INTRODUCTION

Transgender women may face the highest prevalence of HIV of any population, experiencing a disproportionate burden of disease frequently confirmed in surveys throughout the developing and developed world. However, few studies have been conducted specifically for transgender women in China. This study aimed to measure HIV prevalence and explore risk factors for infection in a diverse sample of Chinese transgender women to help advocate for prevention and care interventions for this population.

METHODS

From July 2018 to May 2019, we adapted a respondent-driven sampling (RDS) approach to recruit a diverse sample of 250 transgender women through chains of peer referrals in two cities of eastern China, Nanjing and Suzhou. Eligible participants (i.e. 18 years of age or older, living in Jiangsu province and assigned male sex at birth but currently self-identified as a gender different from male) completed a self-administered questionnaire on a mobile phone to collect demographic characteristics and risk behaviours and underwent HIV testing.

RESULTS AND DISCUSSION

The survey sample was young (82% under age 35 years), with 28.8% having a university degree, 39.2% reporting work at entertainment venues, 47.6% ever having taken hormones and 6.4% being diagnosed with an STI in the last year. One in five (20.8%) reported having engaged in sex work. HIV prevalence was 14.8% (95% CI 10.6 to 19.8), with 75.6% of those testing HIV positive reporting they were already aware of their serostatus. In multivariate analysis, HIV prevalence was significantly higher among transgender women above the age of 24 years, those who work at entertainment venues, who never have taken hormones, and who had been diagnosed with an STI in the last year.

CONCLUSIONS

The prevalence of HIV among transgender women in our study, at 14.8%, is among the highest detected in any population in eastern China. Chinese transgender women may therefore follow the disparity in the burden of HIV noted worldwide. Data support policies to prioritize transgender women for HIV testing outreach, for in-depth research to better understand the specific drivers of infection in this population, and for trans-friendly HIV care and prevention programmes to address their specific needs.

Risk factors for Blastocystis infection in HIV/AIDS patients with highly active antiretroviral therapy in Southwest China

Background

Blastocystis is a widespread zoonotic protozoan of mammalian species, especially in HIV/AIDS individuals. The aim of this study was to analyze the prevalence and risk factors related with Blastocystis infection among HIV/AIDS patients in Southwest China.

Methods

The cross-sectional study was performed in 311 HIV/AIDS cases in Tengchong City, Yunnan Province from July 2016 to March 2017. For each subject, stool specimen was collected to detect the Blastocystis, and the blood sample was used to detect HIV virus load and CD4⁺ T cell count, in addition, structured questionnaire was used to collect the basic information and risk factors.

Findings

The result showed that the detection rate of Blastocystis was 3.86% (95% CI: 2.22–6.62) among HIV/AIDS patients. Both raising animal (OR = 12.93, 95% CI: 1.54–108.36) and drinking un-boiled water (OR = 8.17, 95% CI: 1.76–37.90) were risk factors for Blastocystis infection in HIV/AIDS individuals. In addition, the interaction of CD4⁺ T cell count and HIV virus load was also contribution to Blastocystis infection (P = 0.007).

Conclusions

A high prevalence of Blastocystis infection was found in HIV/AIDS patients in Tengchong. Poor hygienic habits, the interaction of HIV virus load and CD4⁺ T cell count were identified as main risk factors for infection. These results will help us to develop efficient control strategies to intervene with and prevent the occurrence of Blastocystis among HIV-infected individuals.

Compare HIV/syphilis infections between age groups and explore associated factors of HIV/syphilis co-infections among men who have sex with men in Shenzhen, China, from 2009 to 2017

The aim of this study is to assess the HIV/syphilis epidemic among men who have sex with men (MSM) aged <50 years and ≥50 years in Shenzhen, and explore the associated factors of HIV/syphilis co-infections among MSM in Shenzhen, in order to help prevention and intervention programs determine their target sub-group. A serial cross-sectional study was conducted on MSM in Shenzhen city, China from 2009 to 2017. A questionnaire was used to collect demographic characteristics, history of HIV testing, history of blood donation and sexual behaviors. 5 ml of venous blood were collected for syphilis and HIV tests. The overall prevalence of HIV, syphilis, HIV/syphilis co-infection was 9.40%, 18.97%, and 4.91%, respectively. The prevalence of HIV (15.26%), syphilis (27.71%), HIV/syphilis co-infection (9.24%) in aged ≥50 years MSM was significantly higher than aged <50 years MSM (9.15%, 18.59% and 4.72%, respectively). The following factors were found to be significantly associated with HIV/syphilis co-infections (P<0.05): age≥50 years (OR = 1.78, 95% CI = 1.10–2.87), high school or lower (OR = 1.49, 95% CI = 1.10–2.01), monthly income ≤436.2 USD (OR = 1.74, 95% CI = 1.25–2.42), monthly income 436.4–727.2 USD (OR = 1.46, 95% CI = 1.05–2.03), ≥2 anal sex partners in the past 6 months (OR = 1.59, 95% CI = 1.02–2.49), ≥2 oral sex partners in the past 6 months (OR = 1.60, 95% CI = 1.08–2.36), inconsistent condom use during anal sex in the past 6 months (OR = 1.50, 95% CI = 1.11–2.03). We found that aged <50 years and ≥50 years MSM in Shenzhen had a high prevalence of HIV/syphilis infection in a period from 2009 to 2017. Age-specific sexually transmitted diseases education, prevention, and intervention programs for aged ≥50 years MSM should be implemented urgently and integrated interventions of both HIV and syphilis infections on MSM are needed in the future.