High burden of STI and HIV in male sex workers working as internet escorts for men in an observational study: a hidden key population compared with female sex workers and other men who have sex with men

Recruiting hard-to-reach populations via respondent driven sampling for mobile phone surveys in Colombia: a qualitative study

BACKGROUND

Uptake of mobile phone surveys (MPS) is increasing in many low- and middle-income countries, particularly within the context of data collection on non-communicable diseases (NCDs) behavioural risk factors. One barrier to collecting representative data through MPS is capturing data from older participants.Respondent driven sampling (RDS) consists of chain-referral strategies where existing study subjects recruit follow-up participants purposively based on predefined eligibility criteria. Adapting RDS strategies to MPS efforts could, theoretically, yield higher rates of participation for that age group.

OBJECTIVE

To investigate factors that influence the perceived acceptability of a RDS recruitment method for MPS involving people over 45 years of age living in Colombia.

METHODS

An MPS recruitment strategy deploying RDS techniques was piloted to increase participation of older populations. We conducted a qualitative study that drew from surveys with open and closed-ended items, semi-structured interviews for feedback, and focus group discussions to explore perceptions of the strategy and barriers to its application amongst MPS participants.

RESULTS

The strategy's success is affected by factors such as cultural adaptation, institutional credibility and public trust, data protection, and challenges with mobile phone technology. These factors are relevant to individuals' willingness to facilitate RDS efforts targeting hard-to-reach people. Recruitment strategies are valuable in part because hard-to-reach populations are often most accessible through their contacts within their social network who can serve as trust liaisons and drive engagement.

CONCLUSIONS

These findings may inform future studies where similar interventions are being considered to improve access to mobile phone-based data collection amongst hard-to-reach groups.

High Hepatitis B Prevalence and Vaccination Needs Among Transgender Women and Men Sex Workers in Barcelona, Spain

Background

Transgender women sex workers (TWSWs) and men sex workers (MSWs) are especially vulnerable to acquiring hepatitis B virus (HBV) infection. We aimed to describe HBV prevalence (hepatitis B surface antigen [HBsAg] and core antibody [HBcAb]) and associated risk factors for HBV exposure (HBcAb), to assess vaccination status and risk factors for no prior vaccination, and to compare HBV prevalence and vaccination status between TWSWs and MSWs.

Methods

The SexCohort study was advertised to TWSWs and MSWs through several communication channels. At cohort entry through 2 community-based organizations in Barcelona, the study population was screened for HBV and other sexually transmitted infections, and an epidemiological questionnaire was administered (n = 271).

Results

Overall, 93.0% of participants were migrants, mostly from South and Central American countries. HBsAg prevalence was 1.9% (TWSWs, 2.4%; vs MSWs, 0.9%; P = .42), and previous exposure to HBV was 31.8% (TWSWs, 38.5%; vs MSWs, 20.8%; P = .002). Over 5 years of sex work (adjusted odds ratio [aOR], 9.35), prior exposure to Treponema pallidum (aOR, 3.49), and treatment with anxiolytic drugs (aOR, 3.23) were associated with HBV exposure. Overall, 33.7% of participants exhibited immunity from vaccination (TWSWs, 30.8%; vs MSWs, 38.61%; P < .001), while 34.4% were candidates to HBV vaccination (TWSWs, 30.8%; vs MSWs, 40.6%; P < .001). Never having been on pre-exposure prophylaxis for HIV (odds ratio [OR], 4.23) and non-Spanish origin (OR, 5.00) were associated with no prior HBV vaccination.

Conclusions

There is a need to reinforce screening and vaccination programs aimed at TWSWs and MSWs as integrated services offered at the community centers commonly accessed by these populations.

Condomless Anal Sex Between Male Sex Workers and Clients in the Age of Hookup Apps

Among men who have sex with men (MSM), those who also engage in the exchange of sex for money, drugs, shelter or other material goods (i.e., male sex workers-MSWs) have been found to have higher rates of condomless anal sex (CAS), HIV, and STIs than MSM who do not engage in exchange sex. To gain a better understanding of the factors that influence MSWs' engagement in CAS with male clients, we analyzed qualitative interview data from a diverse sample of 141 MSWs from 8 U.S. cities who met clients primarily through hookup or dating apps/websites and who reported having condomless anal sex with at least one of their exchange sex partners in the prior three months. While high client demand and financial incentives were the most frequently mentioned reasons for engaging in CAS with clients, other factors including drug and alcohol use, attraction to the client, the heat of the moment, concerns about sexual performance, and reliance on pre-exposure prophylaxis (PrEP) were also important. Participants who engaged in CAS generally felt that due to client characteristics or mitigating steps they had taken themselves, their chance of acquiring HIV/STIs was acceptably low. Hookup or dating apps/websites have provided an additional and increasingly popular venue for exchange sex to be arranged. These platforms also offer an opportunity for HIV/STI prevention through interventions and tailored messages delivered through these venues that address the motivations, misconceptions and/or situational factors that may lead to CAS.

Differences in STI/HIV Burden and Sexual Health Care-Seeking Behavior Among First- and Second-Generation Migrant and Western-Born Male Sex Workers Who Have Sex With Men in the Netherlands: A Retrospective Cohort Study

BACKGROUND

Globally, migrant sex workers have a higher burden of sexually transmitted infections (STI)/human immunodeficiency virus (HIV). This large study aimed to assess demographics, STI/HIV burden, and sexual health care-seeking behavior of first-generation migrant and second-generation migrant male sex workers who have sex with men (MSW-MSM) versus Western-born MSW-MSM.

METHODS

Coded STI clinic consultations (n = 6970) from 3116 individual MSW-MSM attending any Dutch STI clinic between 2016 and 2021 were included. First-generation migrant: born outside of northern/central/southern/western Europe/North America/Oceania. Second-generation migrant: ≥1parent born outside of northern/central/southern/western Europe/North America/Oceania. Multivariable logistic regression analysis assessed associations between MSW-MSM groups and STI in first consultation in the data. A Cox proportional hazard regression compared the incidence of a first repeat consultation between migration groups, stratified by STI in first consultation. All analyses were adjusted for age and urbanity of STI clinic region.

RESULTS

First-generation migrant MSW-MSM (n = 1085) were mostly born in Latin America (50%), whereas second-generation migrant MSW-MSM (n = 368) mostly originated from North Africa (30.4%). The proportion of STI diagnoses differed (33.2%, 29.3%, 23.3%; P < 0.001) between the first-generation migrant, second-generation migrant, and Western-born MSW-MSM. First-generation migrant MSW-MSM versus Western-born had an adjusted odds ratio of 1.6 (95% confidence interval, 1.3-1.9) of STI diagnosis in the first consultation. First-generation migrant MSW-MSM versus Western-born had an adjusted hazard ratio of 1.5 (95% confidence interval, 1.3-1.8) of having a first repeat consultation at any time, when stratified for no STI in the first consultation.

CONCLUSIONS

The STI/HIV burden is high among all 3 MSW-MSM groups. First-generation migrants have higher odds of STI, but retention in care seems similar. Results highlight the importance of low-threshold STI testing and care for (migrant) MSW-MSM.

"I Want to Be Really Clear": What Male Sex Workers Want to Clarify With Prospective Clients Before Agreeing to Meet for Sex

Men who have sex with men (MSM) and engage in sex work (MSW) frequently meet clients through dating/hookup apps. This provides an opportunity to discuss the parameters of the exchange prior to meeting and to learn things about the prospective client and the risks he might pose. Limited research has examined the specific issues or topics MSWs discuss with clients before agreeing to meet. We analyzed interview data from a sample of 180 MSWs from eight U.S. cities who engaged in exchange sex with clients they had primarily met through dating/hookup apps and websites. Participants typically asked about clients' sexual interests and expectations regarding what will transpire when they meet to make sure they were compatible with their own boundaries and limitations. Most participants inquired about clients' sexual health and often discussed condom use. Assertiveness and communication skills training might help MSWs negotiate encounters with clients that promote health and safety.

Sexual (Risk) Behavior and Risk-Reduction Strategies of Home-Based Male Sex Workers Who Have Sex with Men (MSW-MSM) in The Netherlands: A Qualitative Study

An understanding of sexual (risk) behavior is necessary to successfully develop prevention and care strategies for the sexually transmitted infections (STI) high-risk group of male sex workers who have sex with men (MSW-MSM). However, limited scientific knowledge is available on sexual (risk) behavior of (home-based) MSW-MSM. This study aimed to gain an understanding of sexual (risk) behavior, factors influencing sexual (risk) behavior, and applied risk-reduction strategies of home-based MSW-MSM. For this qualitative study, semi-structured individual interviews were conducted with 20 home-based MSW-MSM in the Netherlands. The interviews' recordings were transcribed verbatim and thematically analyzed with Atlas.ti 8. Condom use was reported to be high during anal sex, but low during oral sex and mostly determined by STI risk perception, trust in clients, and sexual pleasure. Many experienced condom failure, while few knew what to do after condom failure and were aware of post-exposure prophylaxis (PEP). Many MSW-MSM had chemsex in the past 6 months in order to loosen up and enhance sexual pleasure. Some were not vaccinated against hepatitis B virus (HBV), mainly due to the lack of information and awareness of HBV vaccination and low risk perception of HBV. The results of this study can be used to tailor future STI/HIV risk-reduction strategies for home-based MSW-MSM and to increase awareness and uptake of available STI/HIV prevention strategies such as P(r)EP and HBV vaccination.

Advertising Patterns of internet-Based Male Sex Workers Who Have Sex With Men (MSMSW): The Association Between LGBTQIA+ Events and Advertising for Work During the 2022 Pride Season

Research into populations of male sex workers who have sex with men (MSMSW) has historically been stymied given the illegal, stigmatized nature of the profession. The internet has shaped how many sex workers advertise their services to clients. Few studies, however, have leveraged internet advertising data to inform MSMSW-specific public health programming and/or outreach efforts. The primary aim of this study was to describe the association between MSMSW advertising during LGBTQIA+ events in U.S. cities during the 2022 pride season. Data were web-scraped at weekly intervals from an internet platform popular among MSMSW in 16 U.S. cities with scheduled LGBTQIA+ events over 18 weeks June to October 2022. For each city, a Poisson regression was fitted for the outcome of number MSMSW advertisements/week and the association with LGBTQIA+ pride events (binary, no/yes), adjusted for month. Cities with the greatest number of MSMSW advertisements were New York City, San Francisco, and Chicago, with 848.2 (SD = 48.0), 293.3 (SD = 34.7), and 252.3 (SD = 22.8) mean weekly advertisements, respectively. LGBTQIA+ events were significantly (p < .05) associated with an increased number of MSMSW advertisements in San Francisco (incidence rate ratios (IRRs) = 1.16, 95% confidence interval (CI) = 1.07-1.25, p < .001), New York City (IRR = 1.15, 95% CI = 1.05-1.26, p < .005), and Chicago (IRR = 1.25, 95% CI = 1.12-1.39, p < .001). In these jurisdictions, LGBTQIA+ events could represent opportunities to overcome barriers to reaching MSMSW; findings from this study may assist in identifying priority cities for MSMSW-specific sexual health initiatives.

Prevalence of Mycoplasma genitalium infection with antimicrobial resistance mutations among gay sex workers in China

BACKGROUND

Gay sex workers (GSWs) within the population of men who have sex with men in China are known as money boys (MBs). Limited research has been conducted to investigate the infection rate and antimicrobial resistance of Mycoplasma genitalium (M. genitalium) among GSWs in China. This study aimed to evaluate the status of M. genitalium infection among in GSWs.

METHODS

This study was performed among 349 GSWs who were followed up for four years by internet-based sampling collection. The participants were asked to complete an online questionnaire using a mobile app, and trained interviewers took urethral, anorectal, and saliva swab specimens. STIs, including HIV and M. genitalium, were detected. Detection of resistance-associated mutations (RAMs) to macrolides and fluoroquinolones was performed via Sanger sequencing of the 23S rRNA, parC and gyrA genes.

RESULTS

GSWs were enrolled by identifying 10 initial "seeds" from the Blued and WeChat apps. Face-to-face interviews were conducted with 349 GSWs from June 2017 to July 2021. The prevalence of M. genitalium and HIV positivity was 92/349 (26.4%, 95% confidence interval [CI] 21.7-31.0) and 71/349 (20.3%, 95% CI 16.3-24.4), respectively. The proportion of GSWs with M. genitalium infection alone in urethral swabs was 16, and the proportion with symptoms was 2/16 (12.5%). The proportion of GSWs with M. genitalium infection alone in anorectal swabs was 36, and the proportion with symptoms was 3/36 (8.3%). Multivariate regression analysis showed that using new types of drugs in the past 3 months and inconsistent condom usage with clients in the past 30 days were associated with M. genitalium infection. Macrolide resistance within the 23S rRNA gene was detected in 73/88 (83.0%) of the M. genitalium-positive GSWs. Moreover, 79.8% (71/89) of parC and 21.1% (19/90) of gyrA genes had mutations responsible for fluoroquinolone resistance. Three cases had no mutations in any of the three genes, 11 cases had mutations in all three genes, five cases had gyrA and parC gene mutations with no mutation in the 23S rRNA gene, and 42 cases had 23S rRNA and parC gene mutations with no mutation in the gyrA gene.

CONCLUSION

M. genitalium infections in our study displayed a high prevalence and very high levels of macrolide and fluoroquinolone resistance among GSWs in China. Asymptomatic M. genitalium infections are quite common among GSWs. Routine resistance testing of M. genitalium-positive specimens and antimicrobial resistance surveillance are crucial.

Sexually Transmitted Infections Prevalence and Cascade of Care among Undocumented Sex Workers: A Twenty-Year-Long Experience

Undocumented migrant sex-workers (SW) are vulnerable to Sexually Transmitted Infections (STIs). However, data regarding prevalence and linkage-to-care are lacking. Defining epidemiology is crucial to implement preventive measures. We report data from SW attending a facility for migrants in Piacenza, Italy. We collected medical records from 1999 until 2021. Quantitative variables were summarized as mean and standard deviation (SD), and qualitative ones by absolute and relative frequencies. Logistic regression analysis was performed to assess the relationship between sociodemographic, clinical variables, positive testing, and loss to follow-up (LFU). Overall, 1035 STI episodes were collected, 917 in cisgender-females (CF), and 118 in transgender-females (TF). Overall, 474 diagnoses were made. Three-hundred-ninety-two/474 (82.7%) started therapy, and 264/474 (55.7%) complied with a follow-up. Only 51.5% of HBV and 30.8% of HIV were linked to care. Having symptoms (OR 1.70 (95% CI 1.06–2.73), p = 0.028) and previous STIs (OR 1.36 (95% CI 1.04–1.77), p = 0.022) were associated with a higher chance of STIs, while at-risk intercourse to lower risk (OR 0.19 (95% CI 0.07–0.49), p = 0.001). TF had higher odds of bloodborne infections and syphilis (OR 2.61 (95% CI 1.17–5.80), p = 0.019). Regarding follow-up, the older the patient, the higher the LFU (OR 1.05 (95% CI 1.01–1.10), p = 0.021). Our data showed a high prevalence of STIs and LFU among undocumented SW. TF are even more vulnerable. Further efforts should be put into targeted interventions.

High HIV/STI prevalence among cisgender men and transgender women sex workers attending community-based centres in Barcelona, Spain: The Sweetie Project

Background

The aim of this study was to describe the socio-demographics, and the sexual and health-seeking behaviours of cisgender men and transgender women sex workers (M & TWSW) attending community-based organisations (CBOs) in Barcelona, Spain, as well as to estimate the prevalence of HIV, hepatitis B virus (HBV), hepatitis C virus (HCV), Chlamydia Trachomatis (CT) and Neisseria gonorrhoeae (NG) among them at different anatomical sites.

Methods

The Sweetie Project was a community-based cross-sectional study of 147 M & TWSW recruited in two CBOs in Barcelona between 2017 and 2018. A nurse collected biological samples from rectum, pharynx and urethra from the subjects at each CBO and the participants self-completed an epidemiological questionnaire.

Results

The highest prevalence observed was for HIV infection (25.3%) followed by bacterial STIs (NG 19.2% and CT 10.3%). The most prevalent anatomical site was pharyngeal (17.7%) followed by rectal (13.8%). More than half of participants who had a pharyngeal infection presented an isolated pharyngeal infection (57.7%) and half of those who had a rectal or urethral infection presented an isolated infection respectively. The seroprevalence of HCV and HBV was 2.4% and 34.2% respectively. There was a poor but statistically significant correlation between HIV and rectal CT infection ( r = 0.31), previous exposure to HCV ( r = 0.27) or self-reported STI ( r = 0.23), as well as between previous exposure to HCV and rectal CT ( r = 0.21) or self-reported STI ( r = 0.20).

Discussion

The Sweetie Project confirms the high burden of HIV and bacterial STIs among a sample of M&TWSW recruited in CBOs and reinforces the need to routinely screen them at all exposed anatomical sites.

Barriers and facilitators to utilisation of public sexual healthcare services for male sex workers who have sex with men (MSW-MSM) in The Netherlands: a qualitative study

BACKGROUND

Male sex workers who have sex with men (MSW-MSM) are a high-risk group for sexually transmitted infections (STI) including human immunodeficiency virus (HIV). Provision of sexual services by MSW-MSM has shifted to the internet. Consequently, MSW-MSM have become hidden to care for providers of sexual healthcare services (SHS). The aim of this study was to 1) assess characteristics of the MSW-MSM population and 2) assess MSW-MSM's perceived barriers and facilitators to utilise SHS provided free and anonymously by the public health STI clinic in The Netherlands.

METHODS

For this qualitative study, semi-structured individual in-depth interviews were conducted with 20 MSW-MSM who worked home-based in the Dutch province of Limburg. Participants were recruited from November 2018 to June 2019 by purposive sampling until saturation was reached via 1) five websites and smartphone applications commonly used by MSW-MSM, 2) STI clinic, 3) two gay saunas. A theory-informed interview guide was developed including themes such as sexuality, sex work, SHS and barriers and facilitators to SHS utilisation. The interviews' recordings were transcribed verbatim and thematically analysed by inductive and deductive coding with Atlas.ti 8.

RESULTS

The interviewed MSW-MSM were diverse in age (range: 18 - 66; median: 39.5) and mostly western European (85%). Identified barriers to SHS utilisation were lack of self-identification as homosexual and sex worker, perceived stigma on sex work and MSM, the lack of awareness of SHS and a low STI risk perception. Identified facilitators were trust in and positive attitude towards SHS, awareness of SHS's anonymous, confidential and free-of-charge nature, high STI risk perception and knowledgeable about STI/HIV. MSW-MSM-identified implications for SHS-providers were promotion of SHS on online MSW-MSM and general platforms (e.g. Facebook), offering one-on-one online and informal communication with an SHS-provider (e.g. STI clinic nurse) and providing STI (testing) information.

CONCLUSION

The MSW-MSM population's diversity and identified barriers, facilitators and implications should be taken into account to optimize accessibility and utilisation of SHS for MSW-MSM in Western Europe. SHS-providers could facilitate sex work disclosure by personally asking patients about sex in exchange for money or goods in a non-judgmental manner and explaining the medical relevance of disclosure.

Sexual risk and STI testing behaviour among Dutch female and male self-employed sex workers; a cross-sectional study using an Internet based survey

Background

Sex workers are men, women or transgender people who have sex in exchange for money or goods. Self-employed sex workers solicit clients independently from a third-party. Self-employed sex workers are at risk of acquiring sexually transmitted infections (STIs) through their work.

We performed a cross-sectional study, using an Internet survey conducted in 2019–2020 aiming to establish sexual risk behaviour and STI testing behaviour among female and male self-employed sex workers.

Results

A total of 76 female self-employed sex workers (FSW) and 79 male self-employed sex workers (MSW) completed the survey. Both FSW and MSW more often had sex with partners of the opposite sex during work (65.8% FSW, 61.6% MSW) and in their private life (63.3% FSW; 64.5% MSW). During vaginal sex 35.7% of FSW and 29.6% of MSW did not always use a condom. Inconsistent condom use was observed in 35.7% of FSW and 29.6% of MSW during vaginal sex, 46.2% of FSW and 35.7% of MSW did not always use a condom during receptive anal sex. The majority of both FSW and MSW tested for STIs in the past year (67.1% FSW; 67.7% MSW) and 67.5% were aware of the possibility of low-threshold testing at an STI clinic. In the past year, 11.6% of FSW and 8.1% of MSW had an STI.

Conclusion

The reported STI positivity rate among self-employed sex workers was not very high. However, STI prevention efforts remain important considering the low compliance with condom use during sex work. Moreover, not testing for STIs in the past year was substantial with one-third of both FSW and MSW and one-third of both FSW and MSW being unaware of the possibility of low-threshold testing at an STI clinic, warranting efforts to increase testing uptake in this population.

High risks of HIV transmission for men sex worker - a comparison of profile and risk factors of HIV infection between MSM and MSW in China

Background

Although men who have sex with men (MSM) and male sex workers (MSWs) both represent the high-risk groups for the transmission of HIV/AIDS and syphilis, the comparison between them have not yet been well studied in China. We aimed to evaluate the prevalence of HIV among MSM and MSW, and then identify the difference of risk factors of HIV infection.

Methods

A snowball sampling was employed to recruit patrons attending the Tianjin bathhouse from March 2011 to October 2018. A questionnaire covering sociodemographic characteristics, sexual behaviors, HIV-related and HIV awareness was completed by 5166 patrons from all parts of China. Bivariate analyses were done using the Chi-square test to investigate the association between factors and HIV infection among MSM and MSWs. Subsequently, we studied the different impact of risk factors on HIV infections among the two groups using multiple logistic regression with the adjusted odds ratio (aOR) being derived.

Results

From 2011 to 2018, 235 MSWs and 4931 MSM were included into our study. HIV prevalence among the MSWs was 17.8% (95%CI: 13.2% ~ 23.4%) while 6.5% (95%CI: 5.8% ~ 7.2%) for MSM (P < 0.01). MSWs tends to be younger (26.50% in MSWs vs. 8.64% in MSM, P < 0.05), live alone (84.68% in MSWs vs. 47.98 in MSM, P < 0.05), get poor education (41.28% in MSWs vs. 28.45 in MSM, P < 0.05), use drug (8.09% in MSWs vs. 0.89% in MSM, P < 0.05), have more proportion of always use condom during anal sex (56.50% in MSWs vs. 41.95% in MSM, P < 0.05) but less proportion during commercial sex (81.28% in MSWs vs. 98.48% in MSM, P < 0.05), access HIV-related health services (65.96% in MSWs vs. 47.80% in MSM, P < 0.05) and have a HIV test last year(60.85% in MSWs vs. 41.27% in MSM, P < 0.05). The significant associations between risk factors with HIV infection in MSM were not observed in MSWs and vice versa.

Conclusions

High HIV prevalence needs urgent intervention targeting MSWs as a higher susceptible to HIV in comparison to MSM owing to their unique characteristics. The discrepancies of profiles and risk factors between MSM and MSWs should be consider in design and development of strategies.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13264-z.

Structural determinants of HIV/STI prevalence, HIV/STI/sexual and reproductive health access, and condom use among immigrant sex workers globally

OBJECTIVE

Given stark health inequities among precarious and criminalized workers, we aimed to apply a structural determinants framework to systematically review evidence on HIV/sexually transmitted infection (STI) prevalence, access to HIV/STI/SRH services, and condom use among im/migrant sex workers (ISWs) globally.

METHODS

Systematic search of peer-reviewed studies published in English (2009-2019). Eligible studies reported HIV/STI, access to HIV/STI/SRH services, and/or condom use outcomes and/or lived experiences among ISWs. Quantitative and qualitative data were synthesized using a structural determinants framework.

RESULTS

Of 425 studies screened, 29 studies from 15 countries were included. HIV prevalence ranged from 0.3 to 13.6% and varied across settings, with highest prevalence among undocumented ISWs in a high-income country (Portugal). Precarious immigration status was a structural factor associated with poorer HIV/STI outcomes, whereas qualitative narratives showed ISWs' lived experiences as strongly shaped by policing and stigma. Despite disparities, in some settings, HIV and STI prevalence were lower and odds of condom use with clients were higher among ISWs relative to non-im/migrant sex workers. This review identified a paucity of research on SRH and male and gender-diverse ISWs. Across legislative settings, criminalization of SW and im/migrant status, policing, and migration-related marginalization were prominent structural barriers to ISWs' HIV/STI/SRH access.

CONCLUSION

This review identified important inequities and variation in HIV/STI prevalence among ISWs globally. Our findings highlight impacts of the intersections of migration and criminalization, and suggest a need to reform criminalized sex work laws; address punitive policing and immigration enforcement; enable safer indoor work environments; and expand community-based interventions towards promoting HIV/STI/SRH access and health equity among ISWs.

Transactional Sex and Incident Chlamydia and Gonorrhea Among Black Men Who Have Sex With Men in Atlanta, Georgia

BACKGROUND

Black men who have sex with men (BMSM) are disproportionately affected by sexually transmitted infections (STI), including chlamydia and gonorrhea. Transactional sex is an hypothesized risk factor for STI acquisition in BMSM.

METHODS

We estimated the association of transactional sex with incident chlamydia/gonococcal infection among BMSM using longitudinal data from a randomized trial in Atlanta (2012-2015). BMSM were eligible for inclusion if they tested human immunodeficiency virus (HIV)-antibody-negative and reported both ≥2 male sex partners and any condomless anal sex in the last year. We defined chlamydia/gonorrhea incidence as the first occurrence of either rectal or urogenital chlamydia or gonococcal infections after a negative result at enrollment. We used Poisson regression to estimate the incidence rate (IR) for chlamydia/gonorrhea over 12 months. Incidence rate ratios (IRR) compared estimates by reported experience of transactional sex. Subgroup analyses assessed potential heterogeneity by age and sexual identity.

RESULTS

This analysis included 416 BMSM, of whom 191 (46%) were gay-identified, 146 (42%) reported a history of transactional sex, and 57 (14%) had prevalent chlamydia/gonococcal infection at baseline. Over a median of 1 year of follow-up, an additional 55 men tested laboratory-positive for chlamydia/gonorrhea (IR, 17.3 per 100 person-years). Transactional sex was not associated with chlamydia/gonorrhea incidence overall. However, among gay-identified BMSM, transactional sex was associated with incident chlamydia/gonorrhea (IRR, 2.9; 95% confidence interval, 1.2-6.8).

CONCLUSIONS

Economic and social vulnerabilities may motivate engagement in high-risk sexual behaviors through commodified sex, potentially increasing the burden of STIs among BMSM. In this investigation, the relationship between transactional sex and chlamydia/gonorrhea was not homogenous across BMSM with diverse sexual identities in Atlanta, suggesting that within select sexual networks, transactional sex may drive STI risks. Delivering accessible and targeted STI screening for marginalized BMSM should be prioritized for STI and HIV prevention.

Sex workers reporting rape: Understanding their vulnerabilities to improve their care. The characteristics of sex workers who attend Saint Marys Sexual Assault Referral Centre

In the UK it is estimated that there are at least 70,000 sex workers, however, relatively little is known about who these people are. The Crime Survey for England and Wales estimated that 1 in 5 women have experienced sexual violence.(Flatley, 2018) 1 However, there is little known about sex workers who access sexual assault referral centres services. This study aims to create a picture of the needs and demographics of sex workers who attend Saint Mary's Sexual Assault Referral Centre and to help focus future research into this unique demographic. Between June 2017 and May 2019 there were 20 people who were reported to be sex workers that attended Saint Mary's SARC for a forensic medical examination. Their case notes were retrospectively analysed and compared to a control data set of similar size from the same time period. Notable findings include 19 of the 20 sex workers were female, 13 were described as white British, and 19 were described as being single. The sex worker population had higher rates of: mental health difficulties; children no longer under their care and substance abuse issues compared to the control group. The Saint Marys Centre reported reduced engagement from the sex worker cohort within the forensic medical examination process and were reported as having higher levels of non-disclosure of personal information. This study has shown the high level of vulnerability of sex workers who attend Saint Mary's Sexual Assault Referral Centre and their unique concerns when attending the centre.

HIV and syphilis testing behaviors among heterosexual male and female sex workers in Uganda

Background

In Sub-Saharan Africa where HIV disproportionately affects women, heterosexual male sex workers (HMSW) and their female clients are at risk of acquiring or transmitting HIV and other STIs. However, few studies have described HIV and STI risk among HMSW. We aimed to assess and compare recent HIV and syphilis screening practices among HMSW and female sex workers (FSW) in Uganda.

Methods

Between August and December 2019, we conducted a cross-sectional study among 100 HMSW and 240 female sex workers (FSW). Participants were enrolled through snowball sampling, and an interviewer-administered questionnaire used to collect data on HIV and syphilis testing in the prior 12 and 6 months respectively. Integrated change model constructs were used to assess intentions, attitudes, social influences, norms and self-efficacy of 3-monthly Syphilis and 6-monthly HIV testing. Predictors of HIV and syphilis recent testing behaviors were estimated using negative binomial regression.

Results

We enrolled 340 sex workers of whom 100 (29%) were HMSW. The median age was 27 years [interquartile range (IQR) 25–30] for HMSW and 26 years [IQR], (23–29) for FSW. The median duration of sex work was 36 and 30 months for HMSW and FSW, respectively. HMSW were significantly less likely than FSW to have tested for HIV in the prior 12 months (50% vs. 86%; p = 0.001). For MSW, non-testing for HIV was associated with higher education [adjusted prevalence ratio (aPR) 1.66; 95% confidence interval (CI) 1.09–2.50], poor intention to seek HIV testing (aPR 1.64; 95% CI 1.35–2.04), perception that 6-monthly HIV testing was not normative (aPR 1.33; 95% CI 1.09–1.67) and low self-efficacy (aPR 1.41; 95% CI 1.12–1.79). Not testing for syphilis was associated with low intention to seek testing (aPR 3.13; 95% CI 2.13–4.55), low self-efficacy (aPR 2.56; 95% CI 1.35–4.76), negative testing attitudes (aPR 2.33; 95% CI 1.64–3.33), and perception that regular testing was not normative (aPR 1.59; 95% CI 1.14–2.22).

Conclusions

Non-testing for HIV and syphilis was common among HMSW relative to FSW. Future studies should evaluate strategies to increase testing uptake for this neglected sub-population of sex workers.

Sexually transmitted infections in male heterosexual Dutch clients who visited German cross-border female sex workers; a 3 year retrospective study

BACKGROUND

Some male heterosexual clients prefer to visit a cross-border Female Sex Worker (FSW) because of cheaper sex and unsafe sex practices, and may therefore be at risk for sexually transmitted infections (STI). The objective of this study was to assess whether having commercial cross-border sex is an independent risk factor for being diagnosed with a STI.

METHODS

An observational retrospective study was performed using data of 8 Dutch STI clinics bordering Germany, between 2011 and 2013. All male heterosexual clients of FSWs were selected and data on country of FSW visit and occurrence of STI were used for multivariable regression analysis.

RESULTS

The study population consisted of 2664 clients of FSW. Most clients visited the Netherlands (82.4%), followed by visits to another country (beyond cross-border) (9.9%) and cross-border visits (7.8%). Clients of FSW were less likely to be STI positive when they were younger than 25 years(OR = 0.6, 95%CI 0.4 to 0.8 25-44 years and OR = 0.5, 95%CI 0.4 to 0.7 older than 45 years), and more likely when they had 20 or more sex partners in the last 6 months (OR = 2.9, 95%CI 1.9 to 4.4), did not use a condom during last sexual contact (OR = 2.2, 95%CI 1.6 to 2.9) and made cross-border visits (OR = 1.7, 95%CI 1.1 to 2.6).

CONCLUSIONS

As cross-border visits appears to be a novel independent risk factor for STI in clients of FSW, this group should therefore be advised on STI prevention.

Social Capital Moderates the Relationship Between Stigma and Sexual Risk Among Male Sex Workers in the US Northeast

Stigma contributes to elevated HIV incidence among male sex workers (MSW). Social capital (i.e., resources accessed through one's social relationships) may act as a buffer between stigma and sexual risk behaviors and HIV acquisition. Using negative binomial regression, we examined the association between both sex work-related stigma and social capital with respect to number of condomless sex acts among 98 MSW living in the US Northeast. In models adjusted for sociodemographic characteristics, sex work-related stigma was associated with number of condomless sex acts with any non-paying partner (i.e., male and female) (aIRR = 1.25, p < 0.001) and male non-paying partners (aIRR = 1.27, p = 0.09) among individuals with low social capital, not among those with high social capital. Sex work-related stigma was not associated with number of condomless anal sex acts with male paying clients at any level of social capital. Future HIV prevention interventions should consider promoting social capital among MSW.

Barriers and facilitators to hepatitis B vaccination among sex workers in Vancouver, Canada: Implications for integrated HIV, STI, and viral hepatitis services

OBJECTIVES

Sex workers (SWs) face an increased burden of sexually transmitted and blood-borne infections, yet little is known regarding hepatitis B virus (HBV) prevention and care. This study was performed to characterize cross-sectional and prospective correlates of HBV vaccination among SWs in Vancouver.

METHODS

Questionnaire data were drawn from a community-based cohort of SWs (2010-2017). Multivariable logistic regression was used to examine correlates of lifetime self-reported HBV vaccination. Multivariable generalized estimating equation (GEE) regression was used to assess correlates of recent vaccination.

RESULTS

Among 855 participants, 68.3% reported lifetime HBV vaccination. Multivariable logistic regression showed that im/migrants (adjusted odds ratio (AOR) 0.50, 95% confidence interval (CI) 0.32-0.78) had lower odds of vaccination and that those using injection drugs (AOR 1.88, 95% CI 1.27- 2.78) and those who had undergone HIV testing (AOR 1.94, 95% CI 1.14-3.29) had higher odds of vaccination. In the multivariable GEE analysis, HIV seropositivity (AOR 1.93, 95% CI 1.26-2.97) and recent STI testing (AOR 2.95, 95% CI 1.99-4.39) correlated with recent HBV vaccination.

CONCLUSIONS

Im/migrant SWs from HBV-endemic settings appear to face gaps in HBV prevention. Evidence-based interventions addressing gaps in voluntary HBV prevention and care are needed, including community-based and culturally safe services. Injection drug use and HIV testing were linked to enhanced vaccination, suggesting that harm reduction and HIV programmes may facilitate linkage to HBV prevention.

Transactional Sex among Men Who Have Sex with Men: Differences by Substance Use and HIV Status

Exchanging money, drugs, and other goods for sex has been associated with sexual risk behaviors and increased STIs/HIV. While female sex work is well described, data on men who exchange sex for money or goods are more limited. This paper examined the prevalence and correlates of transactional sex among young men who have sex with men, especially focusing on substance use and HIV status. We conducted a cohort study of 511 participants recruited between August 2014 and December 2017 in Los Angeles, CA. Eligible participants were: (1) between 18 and 45 years of age; (2) male; and (3) if HIV-negative, reported condomless anal intercourse with a male partner in the past 6 months. By design, half were HIV-positive and half HIV-negative. At baseline and semi-annual follow-up visits, computer-assisted self-interviews were used to collect information on demographics, sexual behaviors including transactional sex which was defined as exchange of money, drugs, or a place to stay for anal intercourse. Laboratory testing was conducted for current STI/HIV status. The average age of participants was 31.4 years with 43% identifying as African American, followed by 36% as Hispanic/Latino. The prevalence of recent transactional sex across 1486 study visits was 17% (n = 255), with 74% of those reporting exchanging sex for drugs. The prevalence of transactional sex was higher among those who reported unstable housing (32 vs. 11%; p value < .01), concurrent sexual partnerships (26 vs. 9%; p value < .01), and transgender sex partners (40 vs. 15%; p value < .01). Those who reported receiving money, drugs, or shelter for sex were also more likely to report giving money, drugs, shelter for sex than men who did not report exchange sex (77 vs. 11%; p value < .01). Based on multivariable analyses after adjusting for age and race/ethnicity, HIV viral load was independently associated with transactional sex [adjusted odds ratio (AOR) = 1.4; 95% confidence interval (CI) 1.1-1.7) per log₁₀ increase]. Additionally, those testing positive for an STI were nearly twice as likely to report transactional sex as compared to those without STIs (AOR = 1.9; 95% CI 1.2-3.5). These findings underscore the relatively high prevalence of transactional sex and its potential role in ongoing HIV transmission among this cohort of high-risk HIV-negative and HIV-positive men who have sex with men.

Preventing sexually transmitted and blood borne infections (STBBIs) among sex workers: a critical review of the evidence on determinants and interventions in high-income countries

Background

Across diverse regions globally, sex workers continue to face a disproportionate burden of HIV and other sexually transmitted and blood borne infections (STBBIs). Evidence suggests that behavioural and biomedical interventions are only moderately successful in reducing STBBIs at the population level, leading to calls for increased structural and community-led interventions. Given that structural approaches to mitigating STBBI risk beyond HIV among sex workers in high-income settings remain poorly understood, this critical review aimed to provide a comprehensive synthesis of the global research and literature on determinants of HIV and other STBBIs and promising intervention practices for sex workers of all genders in high-income countries.

Methods

We searched for publications over the last decade (January 2005–March 2016) among sex workers (cis women, cis men, and trans individuals). Data obtained from quantitative peer-reviewed studies were triangulated with publicly available reports and qualitative/ethnographic research where quantitative evidence was limited.

Results

Research demonstrates consistent evidence of the direct and indirect impacts of structural factors (e.g., violence, stigma, criminalization, poor working conditions) on increasing risk for STBBIs among sex workers, further compounded by individual and interpersonal factors (e.g., mental health, substance use, unprotected sex). Sub-optimal access to health and STBBI prevention services remains concerning. Full decriminalization of sex work has been shown to have the largest potential to avert new infections in sex work, through reducing workplace violence and increasing access to safer workspaces. Promising practices and strategies that should be scaled-up and evaluated to prevent STBBIs are highlighted.

Conclusions

The high burden of STBBIs among sex workers across high-income settings is of major concern. This review uniquely contributes to our understanding of multilevel factors that potentiate and mitigate STBBI risk for sex workers of all genders. Research suggests that multipronged structural and community-led approaches are paramount to addressing STBBI burden, and are necessary to realizing health and human rights for sex workers. Given the heterogeneity of sex worker populations, and distinct vulnerabilities faced by cis men and trans sex workers, further research utilizing mixed-methods should be implemented to delineate the intersections of risk and ameliorate critical health inequalities.

Social-ecological factors associated with selling sex among men who have sex with men in Jamaica: results from a cross-sectional tablet-based survey

BACKGROUND

Globally, men who have sex with men (MSM) experience social marginalization and criminalization that increase HIV vulnerability by constraining access to HIV prevention and care. People who sell sex also experience criminalization, rights violations, and violence, which elevate HIV exposure. MSM who sell sex may experience intersectional stigma and intensified social marginalization, yet have largely been overlooked in epidemiological and social HIV research. In Jamaica, where same sex practices and sex work are criminalized, scant research has investigated sex selling among MSM, including associations with HIV vulnerability.

OBJECTIVE

We aimed to examine social ecological factors associated with selling sex among MSM in Jamaica, including exchanging sex for money, shelter, food, transportation, or drugs/alcohol (past 12 months).

METHODS

We conducted a cross-sectional survey with a peer-driven sample of MSM in Kingston, Ocho Rios, and Montego Bay. Multivariable logistic regression analyses were conducted to estimate intrapersonal/individual, interpersonal/social, and structural factors associated with selling sex.

RESULTS

Among 556 MSM, one-third (n = 182; 32.7%) reported selling sex. In the final multivariable model, correlates of selling sex included: individual/intrapersonal (lower safer sex self-efficacy [AOR: 0.85, 95% CI: 0.77, 0.94]), interpersonal/social (concurrent partnerships [AOR: 5.52, 95% CI: 1.56, 19.53], a higher need for social support [AOR: 1.08, 95% CI: 1.03, 1.12], lifetime forced sex [AOR: 2.74, 95% 1.65, 4.55]) and structural-level factors (sexual stigma [AOR: 1.09, 95% CI: 1.04, 1.15], food insecurity [AOR: 2.38, 95% CI: 1.41, 4.02], housing insecurity [AOR: 1.94, 95% CI: 1.16, 3.26], no regular healthcare provider [AOR: 2.72, 95% CI: 1.60, 4.64]).

CONCLUSIONS

This study highlights social ecological correlates of selling sex among MSM in Jamaica, in particular elevated stigma and economic insecurity. Findings suggest that MSM in Jamaica who sell sex experience intensified social and structural HIV vulnerabilities that should be addressed in multi-level interventions to promote health and human rights.

Pathways to Male Transactional Sex in Mumbai, India

The article explores pathways to male transactional sex, focusing on entering, soliciting practices, role of pimps, client characteristics, and negotiations. Little scientific literature exists regarding male transactional sex in India, who represent a high-risk group for HIV infection. Case studies with 10 men who engage in transactional sex were conducted, who were recruited using purposive snowball sampling and interviewed at a social service organization. Participants differed in their sexual identity, sex roles, soliciting practices, and clients. Most of them listed economic crisis as their reason for entering transactional sex. Strategies to find clients included self-solicitation and referrals, while pimps played a major role in solicitation, negotiations, and events of crisis. The relationship among men who engage in transactional sex, pimps, and clients involves points of negotiation, opportunities, and limitations. HIV prevention should focus on identifying and addressing the groups' unique needs and working with pimps on risk-reduction strategies and crisis interventions.

HIV and other STIs in male sex workers: Findings from a sexual health promotion intervention in Vietnam

Male sex workers (MSWs) in Vietnam are at high risk for acquisition and transmission of human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs), yet are extremely disengaged from the healthcare system. This contributes to large numbers of untreated or late-treated infections and increased secondary transmission. We enrolled 995 MSWs in Hanoi and Ho Chi Minh City (HCMC) in a Sexual Health Promotion intervention that included face-to-face delivery of seven content modules, a clinical examination and testing for HIV, syphilis, gonorrhea and Chlamydia. Onsite treatment was provided for STIs, and those who tested positive for HIV were referred to local treatment centers. While 64.6% of participants had never been to a health service and fewer than half (41.2%) had ever been tested for HIV, 67.1% returned for test results. This testing identified 109 (11.0%) participants who were HIV-positive and 312 (31.4%) who tested positive for at least one other STI. Substantive differences were seen in MSWs from different cities, with those from Hanoi more likely to have ever visited a health service (57.8% vs. 24.9%) and to have taken a prior HIV test (54.1% vs. 37.9%) than those in HCMC. Sexual health promotion is a promising approach to engaging MSWs in health services.

Screening for HIV, hepatitis B and syphilis on dried blood spots: A promising method to better reach hidden high-risk populations with self-collected sampling

Introduction

Many people at high risk for sexually transmitted infections (STIs), e.g., men who have sex with men (MSM), are not optimally reached by current sexual health care systems with testing. To facilitate testing by home-based sampling or sampling in outreach setting we evaluated dried blood spots (DBS), a method for self-collected blood sampling for serological screening of HIV, hepatitis B (HBV) and syphilis. The aims of this study were to assess the acceptability and feasibility of self-collected DBS and to compare the test results for screening of HIV, HBV and syphilis from DBS with blood drawn by venous puncture.

Methods

DBS were collected from men who have sex with men (MSM), visiting the STI clinic of the public health service South Limburg (n = 183) and HIV positive and HBV positive patients (n = 34), visiting the outpatient clinics of the Maastricht University Medical Centre in the period January 2012–April 2015. The 93 first participating MSM visiting the STI clinic were asked to fill in a questionnaire about the feasibility and acceptability about self-collection of DBS in a setting without going to a health care facility and were asked to collect the DBS themselves. Serological screening tests for HIV (HIV combi PT, Roche), HBV (HBsAg, Roche) and syphilis (Treponema pallidum Ig, Biokit 3.0) were performed on DBS and on blood drawn by venous puncture, which was routinely taken for screening.

Results

In total 217 participants were included in the study with a median age of 40 years (range between 17–80). Of MSM 84% agreed that it was clear and easy to do the finger-prick, while 53% agreed that it was clear and easy to apply the blood onto the DBS card. Also, 80% of MSM would use the bloodspot test again. In 91% (198) of DBS, sufficient material was collected to perform the three tests. No difference was observed in DBS quality between self-collected DBS and health care worker collected DBS. For HIV (n = 195 DBS-serum pairs) sensitivity and specificity were 100%. For HBV the sensitivity for HBsAg (n = 202) was 90% and specificity was 99%. For syphilis (n = 191) the sensitivity of the DBS was 93% with a specificity of 99%. Analysis of the DBS of HIV positive participants (n = 38) did show similar test performance for HBV and syphilis as in HIV negatives.

Conclusion

DBS is an acceptable self-sampling method for MSM, as there was no difference in DBS quality in self-collected and health care worker collected DBS. Test performance, i.e., its high sensitivity (>90%) and specificity (>99%) measures show that DBS is a valid alternative for venous blood puncture. Especially when DBS is combined with home-collected sampling for Chlamydia trachomatis and Neisseria gonorrhoeae, complete STI screening can be done in outreach setting and/or home-collected sampling in MSM.

Chlamydia trachomatis infection prevalence and serovar distribution in a high-density urban area in the north of Italy

The aim of this study was to assess Chlamydia trachomatis (CT) infection prevalence and serovar distribution in a high-density urban area in the north of Italy, by comparing different groups of subjects divided on the basis of the type of care provider they referred to (STI Clinic, gynaecologists or general practitioners). From January 2011 to May 2014, all the specimens submitted to the Microbiology Laboratory of St Orsola Hospital in Bologna for CT detection were tested by PCR assay. For positive specimens, molecular genotyping based on RFLP analysis was performed. Total prevalence of CT infection was 8.1 %, with significant differences between subgroups (P<0.01) but stable during the study period. The STI Clinic was mainly responsible for CT diagnosis, whereas the lowest infection prevalence was detected in gynaecological clinics, despite the high number of tests performed. Extra-genital samples were almost exclusively collected from males at the STI Clinic. Interestingly, 13.3 % of patients providing extra-genital specimens were positive for CT on rectal and/or pharyngeal swabs, and 4.4 % of cases would have been missed if extra-genital sites had not been tested. The most common serovar was E, and serovar distribution was influenced by gender (P<0.01), age (P<0.01), care provider (P=0.01) and anatomical site (P<0.01). The L2 serovar was detected only in extra-genital samples from males at the STI Clinic. Knowledge about care providers' contributions in CT testing and diagnosis is essential for infection control. CT typing is crucial for appropriate management of specific infections, such as lymphogranuloma venereum in extra-genital samples of high-risk populations.