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<p>Adolescents and young adults (AYA) in Nigeria with increased HIV risk, such as those who engage in multiple sexual partnerships (i.e., more than one sexual partner within a specified period), transactional sex (i.e., exchange of money or gifts for sex), or needle-sharing (i.e., needles or other injection equipment are shared by multiple people), are eligible for pre-exposure prophylaxis (PrEP). One strategy that has the potential to reach PrEP-eligible AYA is HIV self-testing, which can expand existing HIV testing services and support differentiated PrEP programs. However, little is known about HIV self-testing in these AYA populations. We examined associations between these three high-risk behaviors and HIV self-testing. We analyzed data from Innovative Tools to Expand Youth-friendly HIV Self-Testing (I-TEST), a stepped-wedge trial examining the impact of a combination intervention package on HIV self-testing among AYA aged 14–24 years in Nigeria. We fit generalized linear models, with an identity link and a binomial error distribution, using generalized estimating equations. We generalized trial estimates to all AYA in Nigeria using a two-stage weighted approach. Of 1,429 participants, the median age was 20 years (IQR: 18–22), 50.3% were female, and 69.4% reported secondary school as their highest education level completed. AYA who engaged in transactional sex had higher HIV self-testing uptake (8.1% [4.8, 11.5]) than AYA with no history of transactional sex. There were no statistically significant differences in recent HIV self-testing uptake among AYA by sexual partnerships or needle-sharing history. The trial estimates were similar in the adjusted models. The estimates for the trial and generalized samples were in the same direction, except for AYA with two recent sexual partners. There was a high level of HIV self-testing uptake across all categories of sexual partnerships, transactional sex, and needle-sharing, with significantly higher uptake among those who engaged in transactional sex, indicating that HIV self-testing strategies are reaching these various AYA populations and the need to sustain access for these groups.</p>

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Uptake of HIV Self-testing Among Adolescents and Young Adults in Nigeria: A Secondary Observational Analysis of a Stepped-Wedge, Cluster-Randomized Trial

  • 期刊论文

  • 发表日期：

    2026年5月23日

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  • Kadija M. Tahlil,
  • Audrey E. Pettifor,
  • Daniel Westreich,
  • Jessie K. Edwards,
  • Weiming Tang,
  • Titi Gbajabiamila,
  • Hong Xian,
  • Ucheoma Nwaozuru,
  • Suzanne Day,
  • Sonam J. Shah,
  • Nora E. Rosenberg,
  • David Oladele,
  • Adesola Z. Musa,
  • Lateef A. Blessing,
  • Ponmile Ogunjemite,
  • Donaldson F. Conserve,
  • Temitope Ojo,
  • Gbenga Ogedegbe,
  • Oliver Ezechi,
  • Juliet Iwelunmor,
  • Joseph D. Tucker

摘要

Adolescents and young adults (AYA) in Nigeria with increased HIV risk, such as those who engage in multiple sexual partnerships (i.e., more than one sexual partner within a specified period), transactional sex (i.e., exchange of money or gifts for sex), or needle-sharing (i.e., needles or other injection equipment are shared by multiple people), are eligible for pre-exposure prophylaxis (PrEP). One strategy that has the potential to reach PrEP-eligible AYA is HIV self-testing, which can expand existing HIV testing services and support differentiated PrEP programs. However, little is known about HIV self-testing in these AYA populations. We examined associations between these three high-risk behaviors and HIV self-testing. We analyzed data from Innovative Tools to Expand Youth-friendly HIV Self-Testing (I-TEST), a stepped-wedge trial examining the impact of a combination intervention package on HIV self-testing among AYA aged 14–24 years in Nigeria. We fit generalized linear models, with an identity link and a binomial error distribution, using generalized estimating equations. We generalized trial estimates to all AYA in Nigeria using a two-stage weighted approach. Of 1,429 participants, the median age was 20 years (IQR: 18–22), 50.3% were female, and 69.4% reported secondary school as their highest education level completed. AYA who engaged in transactional sex had higher HIV self-testing uptake (8.1% [4.8, 11.5]) than AYA with no history of transactional sex. There were no statistically significant differences in recent HIV self-testing uptake among AYA by sexual partnerships or needle-sharing history. The trial estimates were similar in the adjusted models. The estimates for the trial and generalized samples were in the same direction, except for AYA with two recent sexual partners. There was a high level of HIV self-testing uptake across all categories of sexual partnerships, transactional sex, and needle-sharing, with significantly higher uptake among those who engaged in transactional sex, indicating that HIV self-testing strategies are reaching these various AYA populations and the need to sustain access for these groups.