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Updated: Jul 11, 2025

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Published on: September 30, 2020
Older adults' adherence to medications and willingness to deprescribe: A substudy of a randomized clinical trial
Kristie Rebecca Weir1,2, Katharina Tabea Jungo1,2,3,4, Sven Streit1,2
1Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Sydney, Australia.
Abstract:
Our study investigated the association between patients' willingness to have medications deprescribed and medication adherence. This longitudinal substudy of the 'Optimizing PharmacoTherapy In the Multimorbid Elderly in Primary CAre' (OPTICA) trial, a cluster randomized controlled trial, took place in Swiss primary care settings. Participants were aged ≥65 years and over, with ≥3 chronic conditions and ≥5 regular medications. At baseline, the 'revised Patient Attitudes Towards Deprescribing' (rPATD) questionnaire was measured. The A14-scale measured adherence (self-report) at the 12-month follow-up. Multilevel linear regression analyses adjusted for baseline variables were performed. Of the 298 participants, 45% were women, and the median age was 78. Participants reported a high level of adherence and willingness to have medications deprescribed. We did not find evidence for an association between patients' willingness to deprescribe and medication adherence. Further research is needed to explore the relationship between these concepts and to inform collaborative decisions about medicines in the context of polypharmacy.
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