Fig. 2. Trends in the ratio of emergency room visits in 2015 compared to the averages in 2014 and 2016 by region. (A) Regional trends in emergency room visits between risk areas and comparison areas. Seoul and Gyeonggi province were risk areas while other metropolitan cities and other provinces were comparison areas. (B) Regional trends in emergency room visits between high-risk areas and comparison areas in Gyeonggi Province. Suwon and Pyeongtaek were high-risk areas while Anyang and Seongnam were comparison areas.
