J Korean Med Sci. 2020 May 4;35(17):e115 https://doi.org/10.3346/jkms.2020.35.e115 eISSN 1598-6357·pISSN 1011-8934 Original Article Prevalence and Incidence of Neuroscience Neuromyelitis Optica Spectrum Disorder in Korea: Population Based Study Hye Lim Lee ,1 Jae Young Kim ,2 Jin Myoung Seok ,3 Yoon-Ho Hong ,4 Nam Gu Lim ,5 Ha Young Shin ,6 Byung-Jo Kim ,1 Soon-Young Hwang ,7 Ju-Hong Min ,8,9 and Byoung Joon Kim 8,9 1Department of Neurology, Korea University College of Medicine, Seoul, Korea 2Department of Digital Healthcare, Samsung Advanced Institute for Health Sciences & Technology, Seoul, Received: Sep 15, 2019 Korea Accepted: Feb 26, 2020 3Department of Neurology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea Address for Correspondence: 4Department of Neurology, Seoul Metropolitan Government-Seoul National University Boramae Medical Byoung Joon Kim, MD, PhD Center, Seoul National University College of Medicine, Seoul, Korea Department of Neurology, Samsung Medical 5Department of Medical Administration and Information, Daejeon Health Institute of Technology, Daejeon, Center, Sungkyunkwan University School of Korea Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 6Department of Neurology, Yonsei University College of Medicine, Seoul, Korea 06351, Korea. 7Department of Biostatistics, Korea University College of Medicine, Seoul, Korea E-mail:
[email protected] 8Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea © 2020 The Korean Academy of Medical 9Neuroscience Center, Samsung Medical Center, Seoul, Korea Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https:// ABSTRACT creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial Background: Although neuromyelitis optica spectrum disorder (NMOSD) is known to be a use, distribution, and reproduction in any rare disease, its prevalence and incidence have not yet been studied in Korea.