In a primary care settled quality improvement project aiming to deprescribe medication through a medication review intervention, we investigated how the implemented medication changes affected health-related outcomes in real-life patients.

The project was approved by the Management in the Municipality of Frederikshavn. According to Danish legislation, no formal permission from the national or regional Committee on Health Research Ethics was required for this type of study, as patients were not treated inferior to usual care and no biological material was collected. It was conducted as a quality improvement project and informed consent was not required for the specific data collected. The study is in compliance with the General Data Protection Regulation and a part of North Denmark Region's record of processing activities (K2023-008).

Inclusion Criteria:

• new residents and residents that had not yet attended a consultation focusing on pharmacological treatment in The Chronic Care Model.
• patients were invited for the consultation focusing on pharmacological treatment in the month of their birthday and, thereby, included randomly and consecutively throughout the study period.

Exclusion Criteria:

• unable to collaborate on follow-up questionnaires

The study included care home residents living in selected care homes, in which the GPF was associated "care home doctors", and community-dwelling patients with chronic disease listed with the GPF.