3 Dimensions of Treatment Decision Making in Adolescents and Young Adults With Cancer

Background Adolescents and young adults (AYAs) experience treatment nonadherence rates as high as 60%, which can increase the risk of cancer relapse. Involvement of AYAs in treatment decisions might support adherence to medical treatment. Objective The aim of this study was to explore the involvement of AYAs, aged 15 to 20 years, in cancer treatment decision making (TDM). Methods Using interpretive focused ethnography, we conducted interviews with 16 AYAs (total of 31 interviews) receiving cancer treatment within 1 year of diagnosis. Participants reflected on a major recent TDM experience (eg, clinical trial, surgery) and other treatment decisions. Results Participants distinguished important major cancer treatment decisions from minor supportive care decisions. We identified 3 common dimensions related to AYAs' involvement in cancer TDM: (1) becoming experienced with cancer, (2) import of the decision, and (3) decision-making roles. The preferences of AYAs for participation in TDM varied over time and by type of decision. We have proposed a 3-dimensional model to illustrate how these dimensions might interact to portray TDM during the first year of cancer treatment for AYAs. Conclusions As AYAs accumulate experience in making decisions, their TDM preferences might evolve at different rates depending on whether the decisions are perceived to be minor or major. Parents played a particularly important supportive role in TDM for AYA participants. Implications for Practice Clinicians should consider the AYAs' preferences and the role they want to assume in making different decisions in order to support and encourage involvement in their TDM and care.