Fig. 4
Mechanism and Context for CAG’s. A directed acyclic graph representing how a Community Adherence Group — a strategy composed of a forming a group of patients to distribute medications to each other — has effects (Panel A). Once offered, all effects of a CAG are mediated by acceptability and participation in the group, with subsequent steps that operate through four mediators drawn from the literature: (1) opportunity costs, (2) activation, (3) social support and (4) decongestion of clinics. Each mediator represented in this graph invites consideration of how specific contextual elements (that differ between two contexts) could influence the strategy. Each (Panel B) contextual effect is shown in red and includes for illustrative purposes (1) geography and rurality, (2) level of stigma and (3) human resources for health