An Evidence-based Approach toward a Sustainable Healthcare System

Japan is the most rapidly aging country in the world, and the sustainability of its health and social care system is a top priority. In order to have a sustainable healthcare system, global protection of healthcare commons through regulations, together with a market mechanism based on societal values, is critical. An evidence-based approach is needed to attain that; however, the current methodologies for this approach have major limitations, such as the lack of common healthcare goals, the retrospective nature of evidence, and the uncertainty and ambiguity of the available data. This opinion paper discusses the challenges in developing a sustainable system and proposes a feasible way to overcome the limitations.