Methods: To measure compliance, medication eventmonitoring systems were used.
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Adherence was monitored using medication eventmonitoring system (MEMS) and self-report.
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Safety analyses included adverse eventmonitoring.
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Medication adherence was monitored objectively for 3 months using the Medication EventMonitoring System.
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Medication adherence was measured using a valid and objective measure, the Medication EventMonitoring System.
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Medication adherence was assessed with a Medication EventMonitoring System (MEMS) during a 12-month monitoring period.
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In the CM-MEDICATION condition, the same voucher schedule was contingent on Medication EventMonitoring Systems- and riboflavin-based evidence of pill-taking behavior.
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All participants will receive contingency management in which incentives are given for medication adherence as evaluated by the Medication EventsMonitoring System (MEMS).
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The intervention was based on the theory of planned behavior (TPB) and included feedback of medication-taking behavior using the Medication EventMonitoring System (MEMS).