Yves Vimegnon


March 2013

Document Type


Degree Name



Dept. of Medical Informatics and Clinical Epidemiology


Oregon Health & Science University


Background/Aims: Many senior adult patients often face the use of multiple medications with challenges in adhering to the agreed upon regimens. This study focused on addressing health literacy, an underlying medication non-adherence factor. A smartphone application to deliver medication regimen instructions in an easy-to-understand format was developed and tested for its usability by seniors. Methods: Niaspan 500 mg, a drug with a relatively complex regimen, was presented to seniors with minimal text information, images, and verbal instructions from a Palm Pre 2® smartphone. A Discount Usability Testing of the application was performed with a Think Aloud experiment including a Task Performance test. In addition, the participants were asked to assess the User Interfaces with a short Usability Heuristics Checklist and answer a User Personal Feedback Questionnaire. Results: Nine people, 65-86 years old, including four females and five males participated in the study. They all found the




School of Medicine



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