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Balancing adaptive delivery and implementation fidelity over time: a longitudinal mixed-methods study of a community health worker–led adolescent nutrition intervention in rural Uganda

Crossref DOI link: https://doi.org/10.1186/s43058-026-01072-0

Published Online: 2026-08-01

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Buyinza, Thomas https://orcid.org/0000-0002-4615-1264
Buzigi, Edward

Liu, Shuyan

Bukenya, Justine

Sando, Mary Mwanyika

Bärnighausen, Till

Guwatudde, David

Ndejjo, Rawlance
Funding

Funding for this research was provided by:

European Commission (101095616)
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Text and Data Mining valid from 2026-08-01

Accepted Manuscript valid from 2026-08-01
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Article History

Received: 3 May 2026

Accepted: 29 July 2026

First Online: 1 August 2026

Declarations

Ethical approval and consent to participate: This study, part of the ARISE-NUTRINT (Africa Research, Implementation Science, and Education – Reducing nutrition-related NCDs in adolescence and youth) project, was conducted in accordance with the Declaration of Helsinki. Ethical approval was obtained from the Research and Ethics Committee at MakSPH (Ref: SPH-2023-460), and the study was registered with the Uganda National Council for Science and Technology (Ref: HS3481ES). Written informed consent was obtained from all adult participants (AYAs aged 18–24 years, parents or guardians, and CHWs). For adolescents aged 10–17 years, written informed consent was obtained from their parents or guardians, and assent from the adolescents. Participation was voluntary, and participants could withdraw at any time without consequence. Audio recordings and translated data were stored on password-protected, encrypted devices accessible only to the research team.

Consent for publication: Not applicable.

Competing interests: The authors declare no competing interests.

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