*Department of Cardiology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea;
†Department of Cardiology, Soon Chun Hyang University Hospital Bucheon, Bucheon, Republic of Korea;
‡Department of Cardiology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea;
§Department of Cardiology, Dong-A University Hospital, Busan, Republic of Korea; and
¶Department of Applied Statistics, Gachon University, Seongnam, Republic of Korea.
Reprints: Gyung-Min Park, MD, PhD, Department of Cardiology, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojinsunhwando-ro, Dong-gu, Ulsan, Korea 44033 (e-mail: [email protected]) or Seungbong Han, PhD, Department of Applied Statistics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Korea 13120 (e-mail: [email protected]).
Supported by the Basic Science Research Program through the National Research Foundation of Korea, funded by the Ministry of Education [2018R1D1A3B07043344] and the Ministry of Science, ICT [2017R1C1B1006717].
The authors report no conflicts of interest.
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Data availability: This study analyzed the National Health Insurance (NHI) claims data in South Korea. Data of the NHI claims are accessible to researchers after the permission of the Health Insurance Review and Assessment Service (HIRA) in South Korea. Qualified, interested researchers may request access to these data from the HIRA (http://opendata.hira.or.kr/home.do).
