Abstract
Canadian Triage and Acuity Scale (CTAS) was developed by the Canadian Association of Emergency Physicians (CAEP) in the 1990s, and is used ln Canada as an emergency medicine system. We developed Japan Triage and Acuity Scale (JTAS) based on CTAS and released as prototype in 2011. In Japan, acuity assessment is now covered by medical fees under healthcare policy, and nationwide data collection and analysis by medical institutions are now underway. Future studies should include comparisons between different institutions and regional medical service areas, and their utilization as a benchmark for the national evaluation of regional medical function.
