Methods
The PE of the INTE-AFRICA trial aimed to garner an understanding of multi-stakeholder and multi-level perspectives of the social, behavioural, structural, contextual and cultural factors impacting on the process of implementation. These included individual and community health risks, protective behaviours and health responses within the broader social, community and political context (i.e., government resources and barriers to sustaining integration). The design was based on Medical Research Council guidance for evaluating complex interventions [