Supporting Adolescents to Adhere - an Intervention Using Airtime Rewards Allocated by a Prize Drawing

Participant chooses their adherence level to be reached at next clinic visit (at least 80%, but can be higher). If they reach that percentage measured using the MEMS cap, they can participate in a lottery for an airtime reward of none, a small amount, and a larger amount. Participants also receive a weekly motivational message reminding them of their incentive to adhere. If they respond to the message they will receive airtime top-up.

Participant is told to meet a pre-determined target of 90%. If they reach that percentage measured using the MEMS cap, they can participate in a lottery for an airtime reward of none, a small amount, and a larger amount. Participants also receive a weekly motivational message reminding them of their incentive to adhere. If they respond to the message they will receive airtime top-up.