Objectives Jeju Province is well known as the region showing the highest incidence of severe fever with thrombocytopenia syndrome (SFTS) in South Korea. The aim of this study was to evaluate the epidemiological and clinical characteristics of SFTS patients in Jeju Province.
Methods The primary data for this study were obtained from the Integrated Diseases and Health Control System of the Korea Centers for Disease Control and Prevention (KCDCIS). The selection criteria were confirmed cases of SFTS with a residence listed in Jeju Province at the time of diagnosis, reported to the KCDCIS between July 16, 2014 and November 30, 2018.
Results Of 55 confirmed cases of SFTS, the case fatality rate was 10.9% (95% confidence interval [CI], 4.1 to 22.2). The most common presenting symptoms at diagnosis of severe fever, myalgia, and diarrhea had incidences of 83.6% (95% Cl, 71.2 to 92.2), 45.5% (95% Cl, 32.0 to 59.5), and 40.0% (95% CI, 27.0 to 54.1), respectively.
Conclusions Compared to SFTS patients nationwide in 2013-2015, the subjects of this study exhibited a lower case fatality rate and had a lower incidence of severe fever, myalgia, and confusion.
Summary
Korean summary
2014-2018년 제주도 SFTS 환자의 치명률은 10.9% (95%CI: 4.1-22.2)로, 2014-2017년 전국 SFTS 환자의 치명률 19.3% (95%CI: 16.1-22.8)와 유사한 수준이다. 중국환자에 비하여 제주도 환자는 고열, 근육통, 혼수 발현률이 상대적으로 낮으며, 설사는 유사한 수준이었다
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