Young Women’s Stated Preferences for Biomedical HIV Prevention: Results of a Discrete Choice Experiment in Kenya and South Africa

Alexandra M. Minnis*, Erica N. Browne, Marco Boeri, Kawango Agot, Ariane Van Der Straten, Khatija Ahmed, Rachel Weinrib, Carol Mansfield

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Background:Integrating end-user perspectives into the design of new biomedical HIV prevention products is recognized as vital to informing the product development pipeline.Setting:Kisumu, Kenya; and Soshanguve, South Africa.Methods:We conducted a discrete choice experiment survey with 536 women aged 18-30 years to assess preferences for hypothetical HIV prevention products characterized by the attributes of efficacy, pregnancy prevention, delivery form, dosing frequency, and side effects. Participants included product-experienced women from Tablet, Ring, Injection as Options TRIO, a cross-over clinical study evaluating 3 placebo delivery forms (oral tablets, vaginal rings, and injections), and a product-naive sample recruited from the same communities. Analyses used random parameters logit and latent class models.Results:HIV prevention efficacy was a strong determinant of stated choice overall; however, in South Africa, delivery form was just as important, with an injection every 2-3 months most preferred and a daily oral tablet least preferred. In Kenya, product-experienced women preferred monthly injections and least preferred a monthly ring. Respondents indicated a preference for multipurpose prevention technologies that combine HIV and pregnancy protection. Latent class analyses confirmed these findings and delineated heterogeneity in preferences across subgroups defined by age, past experience with the delivery forms, and education.Conclusions:Despite an overall preference for products with high efficacy, we identified attributes salient to future uptake and use of HIV prevention products. Preferences for injectable products underscored interest in this pre-exposure prophylaxis delivery form. Likewise, the multipurpose prevention technology feature was valued in both Kenya and South Africa and most influenced interest in vaginal rings.

Original languageEnglish
Pages (from-to)394-403
JournalJournal of Acquired Immune Deficiency Syndromes
Volume80
Issue number4
DOIs
Publication statusPublished - 01 Apr 2019
Externally publishedYes

Keywords

  • discrete choice experiment
  • HIV prevention
  • multipurpose prevention technology
  • pregnancy prevention

ASJC Scopus subject areas

  • Infectious Diseases
  • Pharmacology (medical)

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