Table 2.

Themes from Focus Groups

Primary Theme	Secondary Theme	Description
Fixed Target Setting	General feedback	How participants felt about having their adherence target set for them, whether they thought this was a good idea or not
	Missing your fixed target	Comments about how participants felt when they missed their fixed target
	Gradual vs ambitious target setting	Opinions about whether participants think that gradual steps are better for helping to reach a high fixed target, or whether it is not necessary
	Level of difficulty	Feedback about how easy or difficult it was to reach their fixed target
Flexible Target Setting	General feedback	How participants felt about their ability to set their own target, whether they thought it was a good or bad idea
	Missing your flexible target	Comments about how participants felt when they missed their flexible target
	Gradual vs ambitious target setting	Opinions about whether participants think that gradual steps are better for helping to reach a high flexible target, or whether it is not necessary
	Level of difficulty	Feedback about how easy or difficult it was to reach their flexible target
MEMS Cap Component		Feedback about the MEMS caps, whether they helped to improve adherence, general comments on use of the MEMS cap in the intervention
Text Messaging Component		How text messaging can motivate ART adherence between prize drawings; other comments about the text-based component, including feelings and emotions in response to text messages
Prize Drawing Component	General impressions	Thoughts about whether the prize drawing encouraged them to increase their ART adherence
	Chances of winning	Thoughts about whether the prize drawings were fair, whether the airtime amounts were appropriate, other opinions about chances of winning