A Multi-Framework Approach to Medication Adherence Evaluation in Pharmacy Student-Led Medication Reviews: An Observational Exploratory Study

Background: Medication adherence is essential for treatment effectiveness and safety, but pharmacy students may find it difficult to assess adherence comprehensively during medication reviews (MRs). This study examined how pharmacy students assess medication adherence in real-world MRs and explored whether complementary adherence frameworks could support broader evaluation. Methods: This observational exploratory study was conducted in the integrated MSc (Master of Science) Pharmacy program at the University of Tartu, Estonia. During the internship, 21 pharmacy students performed a Brown Bag MR with patients aged 65 years or older who used at least 5 prescription medications. Data included patient interviews, e-prescription records, and a validated MR documentation form. An expert panel applied the World Health Organization Medication Adherence Model (WHO-MAM) and the Perceptions and Practicalities Approach (PAPA) to identify adherence determinants not captured by the student-used MR tool. Descriptive statistics and qualitative content analysis were used. Results: Students mainly documented therapy- and patient-related issues, such as incorrect dosing, side effects, and interactions, while socioeconomic and healthcare system factors were rarely identified. Students identified potential adherence-related issues in 19% of cases, whereas experts identified such issues in 57% of cases. Additional gaps included limited recognition of financial barriers, access difficulties, and social support factors. Conclusions: In this exploratory study, pharmacy students identified medication-use-related problems during MRs, but broader adherence-related determinants were less consistently documented. These preliminary findings suggest that structured frameworks such as WHO-MAM and PAPA may be useful for broadening adherence assessment in experiential pharmacy education.