Publications by authors named "Vitaliy Vinogradov"

Introduction: Trans and gender expansive (TGE) individuals around the world are at increased risk for contracting HIV and sexually transmitted infections (STIs), yet the combination of stigma, accessibility challenges, and a lack of trans-specific, trans-affirming interventions perpetuates rates of infection. Due to the severe paucity of data on TGE communities and HIV in Central Asia, this study describes HIV infections (both known and newly detected) and STIs among TGE in a multicity Kazakhstan study.

Methods: This study utilized behavioral and biological assay data collected in a NIDA-funded clinical trial of a behavioral HIV preventive intervention for substance using cis and trans gay and bisexual men who have sex with men (GBMSM) across three Kazakhstan cities (Almaty, Astana, and Shymkent).

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Background: Limited research have examined predictors of illicit use of drugs and binge drinking among gay, bisexual, and other men who have sex with men (MSM) in Kazakhstan and Central Asia. This study examines earlier sexual debut as a risk factor for lifetime and recent substance use behaviors among MSM in Kazakhstan.

Methods: We conducted a secondary analysis of self-reported data from a NIDA-funded HIV prevention trial including 902 adult cisgender MSM in Kazakhstan who completed structured screening interviews.

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Importance: HIV transmission in Kazakhstan has increased among men who have sex with men (MSM) and transgender and nonbinary people who have sex with men (TSM), driven by low HIV testing rates.

Objective: To determine if the intervention had a community effect of increasing HIV testing among MSM and TSM in Kazakhstan.

Design: We employed a stepped-wedge, cluster-randomized controlled trial with MSM and TSM community members recruited from three cities in Kazakhstan: Almaty, Astana, and Shymkent.

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Purpose: Rigorous adaptation methods are needed to revise existing evidence-based behavioral interventions for implementation for new target populations, revised/updated outcomes, new delivery modalities, recent advances, and new technologies. We describe an adaptation method designed to overcome the real-world challenges of having very limited existing expertise, resources, and time.

Method: This adaptation method and accompanying visualization tool ("Deconstruction/Reconstruction Matrix") preserves theoretical mechanisms of behavior change, accounts for challenges in utilizing new technologies, and strengthens clinical processes, with an emphasis on safety.

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Limited research has examined predictors of anti-gay victimization among men who have sex with men (MSM), despite anti-gay violence continuing to be a global problem. We conducted a secondary analysis of data from structured interviews with 600 MSM adults to examine anti-gay victimization and earlier sexual debut among MSM in Kazakhstan. Multiple linear regression was used to test for associations between earlier sexual debut-categorized as age of sexual onset between 13 and 15 years of age and prior to 13 years old, with ages 16 and older as the reference group-and recent and lifetime anti-gay victimization.

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Limited research has examined prevalence rates and associations related to exchange sex behaviors among gay, bisexual, and other men who have sex with men (MSM) in Kazakhstan. This study aimed to examine associations between earlier sexual debuts and lifetime exchange sex behaviors among Kazakhstani MSM. Using data from a National Institute on Drug Abuse-funded Human Immunodeficiency Virus (HIV) prevention trial, we conducted a secondary analysis of self-reported data from 766 adult cisgender MSM in Kazakhstan, who completed structured screening interviews.

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Gay, bisexual, and other men and transgender and nonbinary people who have sex with men (MSM and TSM) are disproportionately impacted by the HIV epidemic in Kazakhstan. MSM and TSM in Kazakhstan also face high levels of discrimination and victimization, known barriers to engagement in HIV prevention and care. We examined data from surveys with 455 MSM and TSM collected May -- October 2020 to determine whether access to HIV testing and treatment was disproportionately limited among those exposed to victimization and discrimination during the early COVID-19 pandemic.

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This study examined substance use and sexual risk correlates of HIV testing among cisgender gay, bisexual, and other men (MSM) and transgender and nonbinary individuals (TSM) who have sex with men in Kazakhstan. We analyzed baseline data from an HIV prevention trial collected prior to intervention deployment ( = 304). Multivariable logistic regression analyses revealed that lifetime HIV testing was positively associated with poly-drug use (AOR = 4.

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Although HIV incidence is rising among gay, bisexual, and other men (MSM) and transgender people who have sex with men (TSM) in Kazakhstan, whether stigmatizing attitudes and connectedness are associated with HIV testing in this region is not known. We analyzed data from one-time interviews with 304 adult MSM and TSM conducted 2018-2019 in three cities in Kazakhstan. Logistic regression determined whether HIV stigma, internalized homophobia, sexual and gender minority (SGM) connectedness predicted HIV testing (within the lifetime, past year, and past 6 months) before and after adjustment for sociodemographic characteristics.

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