Osong Public Health and Research Perspectives

Original Article

Risk factors associated with death due to severe fever with thrombocytopenia syndrome in hospitalized Korean patients (2018–2022): Jia Kim, Hyo-jeong Hong, Ji-hye Hwang, Na-Ri Shin, Kyungwon Hwang; Osong Public Health Res Perspect. 2023;14(3):151-163. Published online June 8, 2023; DOI: https://doi.org/10.24171/j.phrp.2023.0048

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Objectives
Severe fever with thrombocytopenia syndrome (SFTS) has no vaccine or treatment and an extremely high fatality rate. We aimed to analyze and evaluate the risk factors for death associated with SFTS.
Methods
Among reports from 2018 to 2022, we compared and analyzed 1,034 inpatients aged 18 years or older with laboratory-confirmed SFTS who underwent complete epidemiological investigations.
Results
Most of the inpatients with SFTS were aged 50 years or older (average age, 67.6 years). The median time from symptom onset to death was 9 days, and the average case fatality rate was 18.5%. Risk factors for death included age of 70 years or older (odds ratio [OR], 4.82); agriculture-related occupation (OR, 2.01); underlying disease (OR, 7.20); delayed diagnosis (OR, 1.28 per day); decreased level of consciousness (OR, 5.53); fever/chills (OR, 20.52); prolonged activated partial thromboplastin time (OR, 4.19); and elevated levels of aspartate aminotransferase (OR, 2.91), blood urea nitrogen (OR, 2.62), and creatine (OR, 3.21).
Conclusion
The risk factors for death in patients with SFTS were old age; agriculture-related occupation; underlying disease; delayed clinical suspicion; fever/chills; decreased level of consciousness; and elevated activated partial thromboplastin time, aspartate aminotransferase, blood urea nitrogen, and creatine levels.

Citations

Citations to this article as recorded by

Deciphering the evolutionary landscape of severe fever with thrombocytopenia syndrome virus across East Asia
Dongbin Park, Kwan Woo Kim, Young-Il Kim, Mark Anthony B Casel, Hyunwoo Jang, Woohyun Kwon, Kanghee Kim, Se-Mi Kim, Monford Paul Abishek N, Eun-Ha Kim, Hobin Jang, Suhee Hwang, Seok-Min Yun, Joo-Yeon Lee, Hye Won Jeong, Su-Jin Park, Young Ki Choi
Virus Evolution.2024;[Epub] CrossRef
Acute kidney injury as a prognostic marker in severe fever with thrombocytopenia syndrome
Jin Mi Lee, Hae Lee Kim, Myoung-nam Lim, Changhyup Kim, Yeon Ju La, Yong Duk Jeon, Won Sup Oh, Seongmin Son, Sunhwa Lee, Hyunjeong Baek, Daniel Duck-Jin Hwang, Ji In Park
Scientific Reports.2024;[Epub] CrossRef

Brief Report

Presumed population immunity to SARS-CoV-2 in South Korea, April 2022: Eun Jung Jang, Young June Choe, Seung Ah Choe, Yoo-Yeon Kim, Ryu Kyung Kim, Jia Kim, Do Sang Lim, Ju Hee Lee, Seonju Yi, Sangwon Lee, Young-Joon Park; Osong Public Health Res Perspect. 2022;13(5):377-381. Published online October 14, 2022; DOI: https://doi.org/10.24171/j.phrp.2022.0209

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78 Download
3 Web of Science
4 Crossref

Graphical Abstract Abstract PDF

Objectives
We estimated the overall and age-specific percentages of the Korean population with presumed immunity against severe acute respiratory syndrome coronavirus 2 (SARSCoV-2) as of April 2022 using the national registry.
Methods
We used the national coronavirus disease 2019 (COVID-19) infection and vaccination registry from South Korea, as described to define individuals with a previous history of COVID-19 infection, vaccination, or both, as persons with presumed immunity.
Results
Of a total of 53,304,627 observed persons, 24.4% had vaccination and infection, 58.1% had vaccination and no infection, 7.6% had infection and no vaccination, and 9.9% had no immunity. The SARS-CoV-2 Omicron variant emerged at a time when the presumed population immunity ranged from 80% to 85%; however, nearly half of the children were presumed to have no immunity.
Conclusion
We report a gap in population immunity, with lower presumed protection in children than in adults. The approach presented in this work can provide valuable informed tools to assist vaccine policy-making at a national level.

Citations

Citations to this article as recorded by

Realistic Estimation of COVID-19 Infection by Seroprevalence Surveillance of SARS-CoV-2 Antibodies: An Experience From Korea Metropolitan Area From January to May 2022
In Hwa Jeong, Jong-Hun Kim, Min-Jung Kwon, Jayoung Kim, Hee Jin Huh, Byoungguk Kim, Junewoo Lee, Jeong-hyun Nam, Eun-Suk Kang
Journal of Korean Medical Science.2024;[Epub] CrossRef
Epidemiology of Coronavirus Disease 2019 in Infants and Toddlers, Seoul, South Korea
JiWoo Sim, Euncheol Son, Young June Choe
Pediatric Infection & Vaccine.2024; 31(1): 94. CrossRef
Predicting adherence to COVID-19 preventive measures among South Korean adults aged 40 to 69 Years using the expanded health empowerment model
Su-Jung Nam, Tae-Young Pak
SSM - Population Health.2023; 22: 101411. CrossRef
Acute COVID-19 in unvaccinated children without a history of previous infection during the delta and omicron periods
Jee Min Kim, Ji Yoon Han, Seung Beom Han
Postgraduate Medicine.2023; 135(7): 727. CrossRef

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