We also contribute to the OECD (Organisation for Economic Co-operation and Development) Health Care Quality Indicator project, initiated in 2002, which develops the indicators aiming to measure the quality of health services in the fields of primary health care, acute care, cancer care, mental health, patient safety, and patient experiences. Since these indicators are reflected from their own health care systems, member countries can learn and share the experiences and offer a toolkit for policy makers to improve health care quality. Japanese national statistics, such as the Patient Survey and Patient Experience Survey, provides useful data for some indicators, but utilizing national hospital administrative data is currently under consideration.