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Using discrete choice experiments to inform the design of complex interventions.


ABSTRACT: BACKGROUND:Complex health interventions must incorporate user preferences to maximize their potential effectiveness. Discrete choice experiments (DCEs) quantify the strength of user preferences and identify preference heterogeneity across users. We present the process of using a DCE to supplement conventional qualitative formative research in the design of a demand creation intervention for voluntary medical male circumcision (VMMC) to prevent HIV in Tanzania. METHODS:The VMMC intervention was designed within a 3-month formative phase. In-depth interviews (n?=?30) and participatory group discussions (n?=?20) sought to identify broad setting-specific barriers to and facilitators of VMMC among adult men. Qualitative results informed the DCE development, identifying the role of female partners, service providers' attitudes and social stigma. A DCE among 325 men in Njombe and Tabora, Tanzania, subsequently measured preferences for modifiable VMMC service characteristics. The final VMMC demand creation intervention design drew jointly on the qualitative and DCE findings. RESULTS:While the qualitative research informed the community mobilization intervention, the DCE guided the specific VMMC service configuration. The significant positive utilities (u) for availability of partner counselling (u = 0.43, p?

SUBMITTER: Terris-Prestholt F 

PROVIDER: S-EPMC6399844 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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<h4>Background</h4>Complex health interventions must incorporate user preferences to maximize their potential effectiveness. Discrete choice experiments (DCEs) quantify the strength of user preferences and identify preference heterogeneity across users. We present the process of using a DCE to supplement conventional qualitative formative research in the design of a demand creation intervention for voluntary medical male circumcision (VMMC) to prevent HIV in Tanzania.<h4>Methods</h4>The VMMC int  ...[more]

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