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Identifying patterns of sexual behaviors and PrEP uptake characteristics among MSM who were eligible for PrEP: A

Yuanyuan Liu1, Xuan Liu1, Siyue Wei1

  • 1Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.

Journal of Virus Eradication
|July 17, 2024
PubMed

Insights

Understanding sexual behaviors in men who have sex with men (MSM) is key to increasing pre-exposure prophylaxis (PrEP) uptake. Identifying distinct risk patterns helps tailor interventions to boost PrEP use and reduce HIV risk.

Area of Science:

  • Public Health
  • Epidemiology
  • Behavioral Science

Background:

  • Men who have sex with men (MSM) are disproportionately affected by HIV.
  • Pre-exposure prophylaxis (PrEP) is an effective HIV prevention tool, but uptake among eligible MSM remains suboptimal.
  • Understanding the complex interplay of sexual behaviors is crucial for improving PrEP accessibility and adherence.

Purpose of the Study:

  • To identify distinct sexual behavior patterns among MSM eligible for PrEP in mainland China.
  • To examine demographic variations and PrEP uptake across identified sexual behavior patterns.
  • To inform targeted interventions for enhancing PrEP uptake and HIV prevention strategies.

Main Methods:

  • Latent class analysis (LCA) was employed to categorize sexual behavior patterns.
  • A sample of 5,877 MSM aged 16+ meeting PrEP eligibility criteria in mainland China was recruited.
  • Chi-squared tests and multinomial logistic regression analyzed demographic differences and PrEP uptake.

Main Results:

  • Three distinct sexual behavior patterns were identified: low-risk (4,815), medium-risk (516), and high-risk (546).
  • Older age (≥25 years) and higher income (≥¥8,000/month) were associated with the medium-risk group.
  • Higher HIV prevalence areas and receptive anal sex ("top") were linked to medium- and high-risk groups.
  • Medium- and high-risk groups demonstrated significantly higher PrEP willingness, uptake, and adherence compared to the low-risk group.

Conclusions:

  • Latent class analysis effectively identifies diverse sexual behavior patterns in MSM populations.
  • Targeted interventions based on identified risk patterns can enhance PrEP uptake and adherence.
  • Addressing demographic disparities and tailoring strategies for specific risk groups are essential for effective PrEP dissemination and HIV risk reduction among eligible MSM.
Keywords:
HIV preventionLatent class analysisMSM who are eligible for PrEPPrEP uptakeSexual behavior patterns

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