Human-centered design can optimize operational details of an implementation strategy: Experiences from a peer-based hypertension medication delivery program in western Kenya

Human-centered design helped co-create an implementation strategy for peer-based hypertension medication delivery in rural western Kenya, yielding high acceptability and appropriateness scores up to 19.3/19.2.

• Why it matters: The role of human-centered design in implementation research is unclear, especially for refining operational details that fit community needs and healthcare goals.
• What they did: A 22-member stakeholder design team held six HCD meetings to specify operations across five domains, then measured acceptability and appropriateness (max 20) using AIM and IAM among patients, peers, and healthcare workers.
• The result: Mean acceptability/appropriateness were higher for patients (19.3, 19.2) and peers (19.2, 19.2) than healthcare workers (17.7, 17.3), informing recommendations and a final strategy iteration.

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