Patient-related characteristics considered to affect patient involvement in shared decision making about treatment: A scoping review of the qualitative literature

Objective: To identify patient-related characteristics considered to affect patient involvement in shared decision making (SDM) about treatment.Methods: We conducted a scoping review of qualitative studies. We searched for literature across seven databases until March 2022, and included qualitative studies that focused on associations between patient-related characteristics and SDM about treatment in adults. We analyzed studies using an inductive thematic approach.Results: The search yielded 5948 articles, of which 70 were included. We identified many different patient-related characteristics, which we grouped into four categories related to: (1) the individual who is facing the decision, (2) the decision, (3) the relationship between the patient and the clinician and others involved in the decision, and (4) the healthcare context.Conclusions: Studies report a variety of patient-related characteristics that may affect patient involvement in SDM. Amongst others, patients may need to feel informed, to understand their role in SDM, and be able to communicate. Involvement may be challenging with characteristics such as perceived time pressure, poor patient-clinician relationships, emotional distress, and severe illness. Practice implications: In order to truly involve patients in SDM, we might need to focus on characteristics such as patient emotions and relationship building, besides information provision and values clarification.