Fig. 2.

Combination of adherence-enhancing components for each intervention group (n = 87). Each column stands for one intervention group. Intervention groups are ranked by number and types of components tested. In each intervention group, the tested intervention components are illustrated by red boxes. TRT simpl Interventions based on treatment simplification, Cogn-Educ cognitive-educational interventions, Behav-Counsel behavioral-counseling interventions, Soc-Psych social-psycho-affective intervention, EM-feedback interventions based on electronic-monitoring adherence feedback, Tech rem interventions based on a technical reminder use, Tech equip interventions based on a technical equipment use, Rewards any kind of rewards for adhering to medications