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Research Letter
Does providing laboratory confirmed STI results impact uptake of HIV pre-exposure prophylaxis (PrEP) uptake among Kenyan adolescents girls and young women? A descriptive analysis
  1. Lynda Myra Oluoch1,
  2. Alison Roxby2,
  3. Nelly Mugo1,2,
  4. Anna Wald3,4,
  5. Kenneth Ngure5,
  6. Stacy Selke2,
  7. Bhavna Chohan2,
  8. Catherine Kiptinness1,
  9. Kenneth Tapia2,
  10. Murugi Micheni1,
  11. Stephen Gakuo Maina1,
  12. Edinah Casmir1
  1. 1Centre for Clinical Research, Kenya Medical Research Institute, Nairobi, Kenya
  2. 2Department of Global Health, University of Washington, Seattle, Washington, USA
  3. 3Department of Medicine, University of Washington, Seattle, Washington, USA
  4. 4Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
  5. 5Department of Community Health, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
  1. Correspondence to Dr Lynda Myra Oluoch, Clinic, Kenya Medical Research Institute, Nairobi 0200, Kenya; oluochlynda8{at}

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In 2018, one-third of incident adult HIV infections in Kenya occurred among adolescent girls and young women (AGYW) aged 15–24 years.1 2 Pre-exposure prophylaxis (PrEP) is approved as part of the national HIV prevention interventions.3 4 AGYW have the lowest uptake of PrEP coupled with high discontinuation rates.5–7

Sexually transmitted infections are known to increase the risk of HIV acquisition.8 Prevalence of STIs in sexually active AGYW is high.9 This drives health seeking behaviour in this population and is a good opportunity to provide PrEP at point of care.

We hypothesised that availing STI results would augment PrEP uptake among AGYW.

Participants were followed quarterly with STI testing for Neisseria gonorrhoeae, Chlamydia trachomatis and Trichomonas vaginalis. From January 2018 to December 2018, we screened for PrEP eligibility with a validated HIV risk assessment tool (figure 1) which asks seven questions to assess risk and recommends PrEP for any ‘Yes’ answers. PrEP uptake was defined as the number of girls initiating PrEP among those offered PrEP.10 χ² testing was used to compare PrEP uptake with other variables.

Figure 1

NASCOP PrEP Rapid Assessment Screening Tool.

Overall, 220 participants were assessed. PrEP knowledge was high, 179 AGYW (81.4%) reported having heard of PrEP but only 15/220 (6.8%) reported ever considering using PrEP. One hundred and sixty-seven girls (76%) reported sexual debut and were assessed for HIV risk . Of 167 sexually active participants, 119 (71.3%) reported inconsistent condom use and 20 (12%) had a confirmed STI. All at-risk participants were offered PrEP on site; 9 (5.4%) accepted. Regardless of high HIV risk, 158 (94.6%) participants did not perceive themselves at risk and declined PrEP; 90 (57%) of the PrEP decliners reported inconsistent condom use in the 3 months prior to HIV risk assessment.

A higher proportion of AGYW with an STI diagnosis accepted PrEP 4/20 (20%)compared with AGYW who were eligible for PrEP but without an STI diagnosis 5/147 (3.4%).

There is a studied effort to evaluate PrEP delivery to AGYW in sub-Saharan Africa with ongoing demonstration projects: daily adherence reminders(m-health option), conditional cash transfers, bundling with reproductive healthcare and use of real-time electronic monitoring. Stigma remains a challenge, as many are not willing to admit that they may be at risk of HIV. Our work had some limitations. PrEP rollout was quite new at the time of this study, and AGYW may not have felt comfortable as early initiators. Participants took HIV tests quarterly and at this point most had received multiple negative HIV tests, which may have reinforced their self-perception of being low risk for HIV. Finally, the routine STI testing offered is unavailable in most settings, which may have limited understanding of the implication of an STI. In conclusion, we observed improved PrEP uptake in a group of AGYW when an STI diagnosis was made. Concrete evidence of risk, in the form of an STI diagnosis, might be an important factor in improving PrEP uptake.


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  • Handling editor Anna Maria Geretti

  • Contributors LMO conceptualised the idea for the abstract and participated in its design and coordination together with AR, NM, KN, CK and AW to draft the manuscript. SS, KT and SGM performed the data statistical analysis. MM, EC and LMO were involved in the data collection. BC participated in the lab analysis. All authors read and approved the final manuscript.

  • Funding This research was funded by R01 HD091996-01 (ACR) from NICHD, by P01 AI 030731-25 (Project 2) (AW) and by the University of Washington/Fred Hutchinson Cancer Research Center, Center for AIDS Research (CFAR), AI027757. We thank the participants. We thank CROI for scholarship funding that enabled us to present this data at the CROI Seattle 2019 conference. Study data were collected and managed using REDCap electronic data capture tools hosted at the University of Washington funded by UL1 TR002319, KL2 TR002317 and TL1 TR002318 from NCATS/NIH.

  • Disclaimer The funders had no role in study design, data collection and analysis or preparation of the manuscript. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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