Assessment of Cognitive Impairment and Decision Support in Cancer Treatment: cross- sectional observational study

Abstract Background This study aims to explore decision-making processes in cancer treatment in Japan. We investigated the percentage of patients who can make decisions, the rate of implementation of decision-making support actions, and the activities that contribute to decision-making. Methods The survey participants were 555 cancer patients (mean age 63.34 years, standard deviation, 12.76). The investigator observed the survey process in the actual examination room. Results The results of this study clarify the understanding of decision-making among cancer patients. Furthermore, it was found that doctors’ and nurses’ rates of implementation of supportive behaviors differed. In addition to supportive behaviors, patients’ ages were related to the decision-making process. Conclusion From these facts, it is more important for older adults to support more specific decision making. Doctors and nurses should divide roles and contribute to patient decision-making support in the medical field. Furthermore, they should endeavor to communicate according to patients’ personal values and dispositions.