Applying human-centered design to adapt a multifaceted implementation strategy for integrating HIV and NCD services in Lusaka, Zambia: Healthcare worker perspectives

Résumé

There has been limited research reporting approaches used in the adaptation of implementation strategies for integrating HIV and NCD services that involve healthcare providers in low- and middle-income country (LMIC) settings. This paper describes how human-centered design (HCD) was used to 1) adapt a multifaceted implementation strategy for integrating HIV and NCD services through end-user engagement and 2) share insights from the specific suggestions made through the HCD process with healthcare providers. As part of the TASKPEN an implementation science-driven intervention aimed at task shifting and integrating the evidence-based WHO Package of Essential NCDs Interventions (WHO-PEN) approach into routine healthcare settings for PLHIV, we co-designed implementation strategy components (i.e., "sub-components") to strengthen HIV/NCD integration in four HIV clinics in Lusaka, Zambia. The HCD process involved qualitative approaches with healthcare providers, namely lay and non-physician healthcare workers (NPHWs) such as nurses and community healthcare workers (CHWs). A four-phased approach of exploration through formative qualitative work, ideation with intervention deliverers, analysis, and refinement was used to develop strategy sub-components. Rapid thematic data analysis was used to synthesise the data. Applying HCD to a locally-informed intervention for screening and managing cardio-metabolic co-morbidities for Zambian PLHIV informed the addition of sub-components to the multi-faceted implementation strategy to improve adoption, appropriateness, and feasibility. Through co-design workshops, healthcare providers suggested specific sub-components be added to enhance the intervention. Specifically, four sub-component strategy ideas were produced: introducing NCD/HIV champions, circulating a weekly facility NCD medication bulletin, dashboard reporting of HIV/NCD cases, and community sensitization. The use of HCD in implementation science is a promising approach to refining implementation strategies that are likely to result in the success of HIV/NCD integration in Zambia and similar LMIC settings.

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