The electronic identification protects privacy and has consistent HIV incidence with the traditional real-name follow-up among Chinese MSM: A 24-month prospective cohort study (Preprint)

2021 ◽  
Author(s):  
Jie Wei ◽  
Xiangjun Zhang ◽  
Jing Zhang ◽  
Zhenxing Chu ◽  
Wenqing Geng ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Cox Regression ◽  
Retention Rates ◽  
Kappa Statistics ◽  
Hiv Incidence ◽  
Predictive Values ◽  
The Real ◽  
Hiv Seroconversion ◽  
Sex With Men

BACKGROUND Men who have sex with men (MSM) usually face stigma and discrimination in relation to their sexual orientation and have the fear of identification disclosure, which may prevent them from taking HIV tests and participating in research studies. The traditionally used real-name identification methods might lead to biased estimates in HIV incidence. OBJECTIVE This study evaluated an electronic identification (eID) method in estimating HIV incidence among MSM using a social media application that allowed good protection of privacy than the real-name identification. METHODS From January 2018 to January 2020, a WeChat OpenID identifier was used to generate and assign eID for MSM who attended the First Affiliated Hospital of China Medical University for voluntary counselling and testing (VCT) services. The inclusion criteria were men aged 18 years and older who had consensual anal or oral sex with men in the previous 12 months and agreed to WeChat authorization. The eID group was compared with the real-name identification group (PID) that we acquired through HIV testing information regarding participants’ demographic and behavioral characteristics and HIV incidence. Sensitivity, specificity, positive and negative predictive values, and Kappa statistics were used to compare the consistency of the two groups. Cox regression was used to assess factors that were associated with HIV infection during the follow-up period. RESULTS Of 1499 WeChat OpenID users, 1133 participants were identified and linked to their traditional PID and some participants used multiple OpenIDs. The Kappa consistency between eID and traditional PID method were 0.753. At baseline, 4.2% participants in eID group received an HIV positive testing result, which was comparable to PID group (5.4%, Kappa=0.992). Thirty-five participants infected HIV during the follow-up period. The incidence of HIV infection was 7.3/100 person-years for eID group (95% CI, 5.4-10.1) and 5.8/100 person-years for PID group (95% CI, 4.2-8.0), and the consistency was high (Kappa=0.712, P>.05). The retention rates between eID and PID group were also accordant (Kappa=0.722). Number of sexual partners, recent unprotected anal sex, and recent party drug use were associated with HIV seroconversion. CONCLUSIONS The eID method that allowed anonymous tests and multiple visits had consistent results compared to the traditional real-name PID method. This method can be scaled up in future prevention and testing programs in HIV high risk populations with high privacy and confidentiality demands.

scholarly journals High HIV Incidence Among Men Who Have Sex With Men in 8 Chinese Cities: Results From a Trial

2020 ◽  
Vol 7 (5) ◽  
Author(s):  
Wenting Huang ◽  
Yehua Wang ◽  
Haidong Lu ◽  
Dan Wu ◽  
Stephen W Pan ◽  
...  
Keyword(s):  
Hiv Testing ◽  
Incidence Rate ◽  
Sexual Behaviors ◽  
Subgroup Analysis ◽  
Cox Regression ◽  
Large Trial ◽  
Hiv Incidence ◽  
Hiv Seroconversion ◽  
Sex With Men

Abstract Background In China, while the overall HIV prevalence has been decreasing within key populations, the epidemic among men who have sex with men (MSM) is still on the rise. This study aims to assess the HIV incidence rate and identify driving forces of HIV seroconversion among MSM in a closed cohort. Methods This study is a secondary analysis of a large trial of HIV testing promotion among Chinese MSM in 2016–2017. Sexual behaviors, HIV testing activities, and HIV serostatus were measured at baseline and follow-up every 3 months. HIV seroconversion in this study was defined as a self-reported HIV-positive test result. Participants who reported testing for HIV at least twice during different follow-up periods were included. Subgroup analysis and Cox regression were used to examine the correlates with HIV seroconversion. Results Overall, 347 participants were included in this study, with a mean age of 25.3 ± 6.1, and 71.2% were migrants. The sociodemographic characteristics of the included participants were similar to the rest of the participants in the trial (n = 1034); 7.2% (25/347) of participants seroconverted during the study period, resulting in an incidence rate of 15.56/100 person-years. In subgroup analysis, the HIV incidence rate was higher among migrants than nonmigrants (incidence rate ratio, 1.26; 95% confidence interval [CI], 0.47–3.87). In the time-dependent Cox regression model, bisexual MSM had a higher risk of contracting HIV than gay men (adjusted hazard ratio, 2.19; 95% CI, 1.02–4.72). Conclusions Our findings suggest a high HIV incidence rate among Chinese MSM. Further expansion of pre-exposure prophylaxis and other effective HIV prevention interventions are urgently needed.

Trend in HIV incidence in a cohort of homosexual men in Sydney: data from the Health in Men Study

Sexual Health ◽  
2008 ◽  
Vol 5 (2) ◽  
pp. 109 ◽  
Author(s):  
Fengyi Jin ◽  
Garrett P. Prestage ◽  
Ann McDonald ◽  
Tim Ramacciotti ◽  
John C. Imrie ◽  
...  
Keyword(s):  
Cox Regression ◽  
New South ◽  
Homosexual Men ◽  
Sexually Active ◽  
Hiv Incidence ◽  
Community Based ◽  
South Wales ◽  
Hiv Seroconversion ◽  
Study Database

Objectives: To determine the incidence of HIV seroconversion in a community-based cohort of homosexual men in Sydney from 2002 to 2006. Methods: Participants were recruited between 2001 and 2004 from community-based events and venues. They were tested for HIV annually at follow-up interviews. Each year, the study database was matched against the national HIV register to identify additional HIV seroconversions among men lost to active follow up. The trend in HIV incidence over time was examined using Cox regression. Results: Among 1426 participants, 52 cases of HIV seroconversion were identified between 2002 and 2006, an incidence of 0.87 per 100 person-years (95% CI: 0.65–1.14). HIV incidence varied from 1.67 per 100 person-years in 2002 to 0.39 in 2006 (P trend = 0.282). The median age of HIV seroconversion was 36.9 years, ranging from 22 to 63 years. Conclusion: In this community-based cohort of highly sexually active homosexual men in Sydney, HIV incidence was close to 1% each year and declined non-significantly between 2002 and 2006. These data are consistent with surveillance data suggesting no increase in recent HIV incidence in homosexual men in New South Wales.

scholarly journals Investigating HIV Infection and HIV Incidence Among Chinese Men Who Have Sex with Men with Recent Sexual Debut, Chongqing, China, 2011

2016 ◽  
Vol 20 (12) ◽  
pp. 2976-2982 ◽  
Author(s):  
Na Wang ◽  
Guohui Wu ◽  
Rongrong Lu ◽  
Liangui Feng ◽  
Yan Xiao ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Sexual Debut ◽  
Hiv Incidence ◽  
Chinese Men ◽  
Sex With Men

scholarly journals 1701. Added Benefits of Pre-exposure Prophylaxis Use on HIV Incidence with Minimal Changes in Efficiency in the Context of High Treatment Engagement among Men Who Have Sex with Men

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S833-S833
Author(s):  
Alyson L Singleton ◽  
Brandon D Marshall ◽  
Xiao Zang ◽  
Amy S Nunn ◽  
William C Goedel
Keyword(s):  
African American ◽  
Hiv Infection ◽  
Hiv Transmission ◽  
Treatment Engagement ◽  
Hiv Incidence ◽  
Black African ◽  
African American Msm ◽  
Sex With Men ◽  
Exposure Prophylaxis ◽  
High Treatment

Abstract Background Although there is ongoing debate over the need for substantial increases in PrEP use when antiretroviral treatment confers the dual benefits of reducing HIV-related morbidity and mortality and the risk of HIV transmission, no studies to date have quantified the potential added benefits of PrEP use in settings with high treatment engagement across variable sub-epidemics in the United States. Methods We used a previously published agent-based network model to simulate HIV transmission in a dynamic network of 17,440 Black/African American and White MSM in Atlanta, Georgia from 2015 to 2024 to understand how the magnitude of reductions in HIV incidence attributable to varying levels of PrEP use (0–90%) changes in potential futures where high levels of treatment engagement (i.e. the UNAIDS ‘90-90-90’ goals and eventual ‘95-95-95’ goals) are achieved and maintained, as compared to current levels of treatment engagement in Atlanta (Figure 1). Model inputs related to HIV treatment engagement among Black/African American and White men who have sex with men in Atlanta. A comparison of current levels of treatment engagement (Panel A) to treatment engagement at ‘90-90-90’ (Panel B) and ‘95-95-95’ goals (Panel C). Results Even at achievement and maintenance of ‘90-90-90’ goals, 75% PrEP coverage reduced incidence rates by an additional 67.9% and 74.2% to 1.53 (SI: 1.39, 1.70) and 0.355 (SI: 0.316, 0.391) per 100 person-years for Black/African American and White MSM, respectively (Figure 2), compared to the same scenario with no PrEP use. Additionally, an increase from 15% PrEP coverage to 75% under ‘90-90-90’ goals only increased person-years of PrEP use per HIV infection averted, a measure of efficiency of PrEP, by 8.1% and 10.5% to 26.7 (SI: 25.6, 28.0) and 73.3 (SI: 70.6, 75.7) among Black/African American MSM and White MSM, respectively (Figure 3). Overall (Panel A) and race-stratified (Panel B and Panel C) marginal changes in HIV incidence over ten years among Black/African American and White men who have sex with men in Atlanta across scenarios of varied levels of treatment engagement among agents living with HIV infection and levels of pre-exposure prophylaxis use among HIV-uninfected agents. Note: All changes are calculated within each set of treatment scenarios relative to a scenario where no agents use pre-exposure prophylaxis. Person-years of pre-exposure prophylaxis use per HIV infection averted among Black/African American (Panel A) and White (Panel B) men who have sex with men in Atlanta across scenarios of varied levels of treatment engagement among agents living with HIV infection and levels of pre-exposure prophylaxis use among HIV-uninfected agents. Note: The number of HIV infections averted is calculated within each set of treatment scenarios relative to a scenario where no agents use pre-exposure prophylaxis. Conclusion Even in the context of high treatment engagement, substantial expansion of PrEP use still contributes to meaningful decreases in HIV incidence among MSM with minimal changes in person-years of PrEP use per HIV infection averted, particularly for Black/African American MSM. Disclosures All Authors: No reported disclosures

HIV incidence and associated risk factors in men who have sex with men in Mainland China: an updated systematic review and meta-analysis

Sexual Health ◽  
2016 ◽  
Vol 13 (4) ◽  
pp. 373 ◽  
Author(s):  
Wei Zhang ◽  
Jun-Jie Xu ◽  
Huachun Zou ◽  
Jing Zhang ◽  
Ning Wang ◽  
...  
Keyword(s):  
Meta Analysis ◽  
College Education ◽  
Junior College ◽  
People Living With Hiv ◽  
Hiv Incidence ◽  
Syphilis Infection ◽  
Hiv Intervention ◽  
Hiv Prevention Strategies ◽  
Hiv Seroconversion ◽  
Sex With Men

Background: The national annually reported proportion of men who have sex with men (MSM) among people living with HIV (PLWH) is growing in China. To better inform the public health sector how to improve HIV prevention strategies, it is necessary to understand the current level of HIV incidence and its correlates. Methods: Google Scholar, PubMed, Web of Science and three major Chinese electronic publication databases (http://qikan.cqvip.com/, http://g.wanfangdata.com.cn/, http://www.cnki.net/, respectively) were searched for studies reporting HIV incidence. Comprehensive Meta-Analysis (CMA) 2.0 statistical software (Biostat, Inc. Englewood, NJ, USA) was used to calculate the pooled HIV incidence and perform subgroup-analysis to find correlates for HIV seroconversion in Chinese MSM. Random effects modelling was then conducted. Results: Twenty-five eligible studies were included in this meta-analysis. The calculated pooled HIV incidence was 5.61/100 person years (PY), with an increasing trend over time (3.24/100PY, 5.29/100PY, 5.50/100PY in 2005–2008, 2009–2011, 2012–2014 respectively, χ2 test for trend P = 0.04). Subgroup analyses indicated that age <25 years (rate ratio (RR) = 1.85), junior college education and below (RR = 1.87), having ≥ 2 male sexual partners in past 6 months (RR = 2.50), baseline syphilis infection (RR = 2.99), homosexual orientation (RR = 1.91), preferred bottom/versatile roles in anal sexual intercourse (RR = 2.33), and having unprotected anal intercourse in the past 6 months (RR = 2.16) significantly increased the risk for HIV seroconversion (each P < 0.05). Uncircumcised MSM had a marginal statistically significant higher HIV incidence (RR = 3.35, P = 0.051). Conclusion: HIV incidence is still alarmingly high among Chinese MSM. Stronger HIV intervention strategies should be implemented, in particular targeting young, less educated and syphilis-infected MSM.

Early PSA progression in abiraterone/enzalutamide-treated patients with metastatic castration-resistant prostate cancer.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e16530-e16530
Author(s):  
Fernando López-Campos ◽  
Alfonso Gomez-Iturriaga ◽  
Casilda Llacer Perez ◽  
Ivan Henriquez ◽  
Paula Peleteiro ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Radiographic Progression ◽  
Cox Regression ◽  
Castration Resistant Prostate Cancer ◽  
Cox Models ◽  
Predictive Values ◽  
Castration Resistant ◽  
Psa Progression ◽  
Definition Of

e16530 Background: Changes in PSA are widely used as a biomarker for the monitoring of treatment outcome in Metastatic Castration-Resistant Prostate Cancer (mCRPC) in the clinical real-world setting. Early PSA changes (before 12 weeks) are not considered in the definition of PSA Progression (PSAProg) due to the potential for spurious “flare” reactions. We aimed to evaluate the significance of an early PSA increase in Abiraterone/Enzalutamide (Abi/Enz)-treated mCRPC patients (pts). Methods: We retrospectively evaluated Abi/Enz-treated mCRPC pts from 11 hospitals between 2011-2018. Early PSAProg was defined as a 25% increase in PSA from baseline at 4 (PSAProg4) or 8 (PSAProg8) weeks after treatment initiation. PSA progression at 12 weeks (PSAProg12) was confirmed by a second reading. Uni- and multivariable (MV) Cox regression models were conducted to explore the association of PSAProg and overall (OS) and radiographic progression-free (rPFS) survival. Sensitivity (Se), specificity (Sp) and predictive values (PPV, NPV) for the association of early PSAProg with PSAProg12 were calculated. Results: We analyzed 581 mCRPC pts; median follow-up: 19.1 months. 96 (17.1%); 105 (21.6%) and 85 (16.9%) pts had PSAprog at 4, 8 and 12 wks. PSAProg4 and PSAProg8 were significantly associated with confirmed PSAProg12. 55.3% of pts with PSAProg4 and 66.7% of pts with PSAProg8 had a confirmed PSAProg12. Only 9% of pts with no PSA prog at 4 wks and 4.1% of pts with no PSAProg8 had a confirmed PSAProg12. PSAProg4 had Se: 56.6%, Sp: 90.5%, PPV: 55.2%, NPV: 91% for the detection of PSAProg12. PSAProg8 had Se: 81.9%, Sp: 91.2%, PPV: 66.7%, NPV: 95.9% for the detection of PSAProg12. PSAprog at 4, 8 and 12 wks was significantly associated with OS and rPFS in uni- and MV Cox models (Table). Conclusions: Early PSAProg after Abi/Enz is significantly associated with both confirmed PSA Prog at 12 wks and outcome, and may help identify pts not benefitting from Abi/Enz before clinical or radiographic progression. Prospective validation studies are needed. [Table: see text]

scholarly journals Predictive factors for HIV infection among men who have sex with men and who are seeking PrEP: a secondary analysis of the PROUD trial

2019 ◽  
Vol 95 (6) ◽  
pp. 449-454 ◽  
Author(s):  
Ellen White ◽  
David T Dunn ◽  
Monica Desai ◽  
Mitzy Gafos ◽  
Peter Kirwan ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Incidence Rate ◽  
Secondary Analysis ◽  
Anal Intercourse ◽  
Receptive Anal Intercourse ◽  
Hiv Incidence ◽  
Open Label ◽  
Eligibility Criteria ◽  
Sex With Men ◽  
Hiv Acquisition

ObjectivesPre-exposure prophylaxis (PrEP) is a highly effective method of HIV prevention for men who have sex with men (MSM). However, uncertainty remains around the optimal eligibility criteria for PrEP, specifically whether there are subgroups at low risk of HIV for whom PrEP might not be warranted.MethodsPROUD was an open-label waitlist trial design that randomised MSM attending participating sexual health centres in England to receive PrEP immediately (IMM) or after a deferral period of 1 year (DEF). This analysis is based on participants who were randomised to the deferred arm, when they did not have access to PrEP. HIV incidence was compared between subgroups defined by baseline characteristics.ResultsOverall, 21 participants acquired HIV infection over 239.3 person-years (PY) follow-up, yielding an incidence rate of 8.8/100 PY (95% CI 5.4 to 13.4). Two highly significant predictors for HIV acquisition were identified. Men with a self-reported diagnosis of syphilis, rectal chlamydia (CT) or rectal gonorrhoea (GC) in the previous 12 months had an incidence of 17.2/100 PY (95% CI 9.7 to 28.5); those reporting receptive anal intercourse without a condom (ncRAI) with two or more partners in the previous 3 months had an incidence of 13.6/100 PY (95% CI 7.9 to 21.7). The incidence rate among participants lacking both of these risk factors was 1.1/100 PY (1/87.6, 95% CI 0.03 to 6.4).ConclusionsThe high HIV incidence in PROUD suggests that most participants appropriately judged their need for PrEP. Eligibility criteria for a PrEP programme can therefore be broad, as in the current guidelines. However, a recent history of syphilis or rectal CT/GC, or multiple ncRAI partners indicates a high imminent risk of HIV infection. MSM with any of these characteristics should be offered PrEP as a matter of urgency.

scholarly journals 863. Increasing PrEP Uptake: A Diffusion-Based Network Intervention for HIV Prevention Among Young Black Men Who Have Sex With Men

2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S21-S22
Author(s):  
Matthew Ferreira ◽  
Lindsay Young ◽  
John Schneider
Keyword(s):  
Hiv Prevention ◽  
Hiv Infection ◽  
Black Men ◽  
Controlled Trial ◽  
Biomedical Intervention ◽  
Network Intervention ◽  
Sex With Men ◽  
Hiv Negative ◽  
Peer Leader

Abstract Background Advances in biomedical prevention strategies provide new opportunities for reducing HIV incidence among young black men who have sex with men (YBMSM). Pre-exposure prophylaxis (PrEP) is for HIV-negative individuals and has been shown to be up to 99% effective in preventing HIV infection when taken as prescribed by CDC clinical practice guidelines. Several studies, however, have documented low rates of PrEP uptake among YBMSM. Methods PrEP Chicago is a randomized controlled trial peer leader intervention designed to promote uptake of PrEP for HIV prevention among YBMSM. Participants (n = 423) were recruited using respondent-driven sampling (RDS) and randomized to either an intervention (n = 209) or control (n = 214) condition. Eligibility criteria included: aged 18–35, identifies as a person of color, assigned male sex at birth, had sex with a man in the past 12 months, had an active Facebook profile, and resided in Chicago. The intervention includes a half-day, small group PrEP, and peer leader training workshop followed by monthly check-in booster calls. Approximately 12 months after their initial baseline visit, participants return to complete follow-up data collection and switch conditions, giving year 1 control participants the opportunity to learn about PrEP. Results The number of HIV-negative intervention participants on PrEP at baseline vs. 12-month follow-up (PrEP Chicago Study, Chicago, 2016–2018). A total of 341 participants (80.6%) returned at 12 months. Of 209 intervention participants at baseline, 176 (84.2%) completed a follow-up survey at 12 months. At baseline, 13 (13.3%) of 98 HIV-negative intervention participants indicated that they were currently taking PrEP. At 12 months, this number grew to 25 (32.5%) of 77 HIV-negative intervention participants, indicating that they were currently taking PrEP. A total of 21 participants reported initiating PrEP during their time in the intervention. Conclusion PrEP is a valuable biomedical intervention for preventing HIV infection in those at risk. PrEP Chicago, a network intervention designed to promote uptake of PrEP among YBMSM, shows promising results for PrEP adoption among this community. Disclosures All authors: No reported disclosures.

scholarly journals Correlations Between Human Immunodeficiency Virus (HIV) Infection and Rectal Gonorrhea Incidence in Men Who Have Sex With Men: Implications for Future HIV Preexposure Prophylaxis Trials

2019 ◽  
Vol 221 (2) ◽  
pp. 214-217 ◽  
Author(s):  
Charu Mullick ◽  
Jeffrey Murray
Keyword(s):  
Human Immunodeficiency Virus ◽  
Hiv Infection ◽  
Treatment As Prevention ◽  
Published Data ◽  
Hiv Incidence ◽  
Quantitative Correlation ◽  
Preexposure Prophylaxis ◽  
Immunodeficiency Virus ◽  
Prevention Trials ◽  
Sex With Men

Abstract Using published data, we found a direct correlation between the incidence of rectal gonorrhea and human immunodeficiency virus (HIV) infection in men who have sex with men who were not using oral preexposure prophylaxis. HIV incidence was predicted using rectal gonorrhea incidence as the determinant in regression analysis. The observed correlation suggest that rectal gonorrhea incidence can potentially serve as a predictor of HIV incidence. If confirmed with additional data, a quantitative correlation for incidence of the 2 infections could be useful in active-controlled HIV prevention trials where low HIV incidence is expected. Widespread improvements in treatment as prevention and gonorrhea control can negatively impact the correlation and its utility.

scholarly journals A qualitative study exploring the social and environmental context of recently acquired HIV infection among men who have sex with men in South-East England

BMJ Open ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. e016494 ◽  
Author(s):  
Annabelle Gourlay ◽  
Julie Fox ◽  
Mitzy Gafos ◽  
Sarah Fidler ◽  
Nneka Nwokolo ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Antibody Test ◽  
Hiv Infections ◽  
Environmental Context ◽  
The Social ◽  
Hiv Seroconversion ◽  
Sex With Men ◽  
Hiv Acquisition ◽  
The Uk ◽  
Different Levels

ObjectivesA key UK public health priority is to reduce HIV incidence among gay and other men who have sex with men (MSM). This study aimed to explore the social and environmental context in which new HIV infections occurred among MSM in London and Brighton in 2015.DesignA qualitative descriptive study, comprising in-depth interviews, was carried out as a substudy to the UK Register of HIV Seroconverters cohort: an observational cohort of individuals whose date of HIV seroconversion was well estimated. An inductive thematic analysis was conducted in NVivo, guided by a socio-ecological framework.SettingParticipants were recruited from six HIV clinics in London and Brighton. Fieldwork was conducted between January and April 2015.ParticipantsAll MSM eligible for the UK Register Seroconverter cohort (an HIV-positive antibody test result within 12 months of their last documented HIV-negative test or other laboratory evidence of HIV seroconversion) diagnosed within the past 12 months and aged ≥18 were eligible for the qualitative substudy. 21 MSM participated, aged 22–61 years and predominantly white.ResultsA complex interplay of factors, operating at different levels, influenced risk behaviours and HIV acquisition. Participants saw risk as multi-factorial, but the relative importance of factors varied for each person. Individual psycho-social factors, including personal history, recent life stressors and mental health, enhanced vulnerability towards higher risk situations, while features of the social environment, such as chemsex and social media, and prevalent community beliefs regarding treatment and HIV normalisation, encouraged risk taking.ConclusionsRecently acquired HIV infection among MSM reflects a complex web of factors operating at different levels. These findings point to the need for multi-level interventions to reduce the risk of HIV acquisition among high-risk MSM in the UK and similar settings.

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