Methods

All results in this paper are post-hoc analyses of data from a pragmatic, non-blinded, single-center, randomized clinical trial with follow-up 4 months and 13 months after the initial visit. For a detailed description of the trial see the primary publication.3 Briefly, participants taking 9 or more different medicines were recruited from the geriatric outpatient clinic at Copenhagen University Hospital, Bispebjerg and Frederiksberg from June 2017 to December 2019. Participants were randomized to usual care or usual care plus a medication consultation including a medication review and increased cross-sectoral communication (termed the medication review group). The medication reviews were prepared and implemented by a physician from the Department of Clinical Pharmacology. Proposed changes to the medicine were discussed with the patient’s primary care physician and the treating geriatrician before an in-person consultation with the patient where the changes were implemented if the patient agreed to the changes. All included participants provided written, informed consent to the collection of data and the study was approved by the Danish Data Protection Agency (BFH-2017-031).