Publications by authors named "SeongSun Kim"

Background: The persistent coronavirus disease 2019 (COVID-19) pandemic has had direct and indirect effects on mortality, making it essential to analyze excess mortality to fully understand the impact of the pandemic. In this study, we constructed a mathematical model using number of deaths from Statistics Korea and analyzed excess mortality between 2020 and 2022 according to age, sex, and dominant severe acute respiratory syndrome coronavirus 2 variant period.

Methods: Number of all-cause deaths between 2010 and 2022 were obtained from the annual cause-of-death statistics provided by Statistics Korea.

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This study aimed to identify factors influencing compliance with social distancing, a key nonpharmaceutical intervention during the early stages of the coronavirus disease (COVID-19) pandemic. The study population comprised 182 758 Koreans who participated in the 2020 Community Health Survey. Personal characteristics were classified into sociodemographic, health behavioral, and psychosocial factors, and factors associated with social distancing compliance were identified.

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Article Synopsis
  • The study evaluated the intrinsic severity of COVID-19 across different variants (pre-delta, delta, and omicron) and compared outcomes between vaccinated and unvaccinated individuals.
  • The results indicated that unvaccinated individuals had significantly higher case severity rates and case fatality rates, particularly during the delta variant period, while vaccinated individuals maintained relatively low severity levels.
  • The findings suggest that vaccination dramatically reduces the impact of COVID-19, even with new variants, highlighting the importance of vaccination in controlling the disease's severity.
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Background: We aimed to analyze the risk factors for sudden death after diagnosis of coronavirus disease 2019 (COVID-19) in South Korea and to provide evidence for informing prevention and control interventions for patients at risk of sudden death.

Methods: We included 30,302 COVID-19 related deaths registered in the patient management information system (Central Disease Control Headquarters) between January 1, 2021, and December 15, 2022. We collected their epidemiological data recorded by the reporting city, province, or country.

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Objectives: This study aimed to classify coronavirus disease 2019 (COVID-19)-related deaths according to whether COVID-19 was listed as the cause of death, and to investigate the differences in demographic characteristics and risk factors for COVID-19 death classifications.

Methods: A total of 5,625 deaths in South Korea among patients with confirmed COVID-19 from January 20, 2020 to December 31, 2021 were selected. Excluding false reports and unnatural deaths, 5,597 deaths were analyzed.

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Article Synopsis
  • As of September 3, 2022, Korea reported over 5.3 million COVID-19 cases in children under 18, with a case fatality rate of 0.85 per 100,000.
  • Of the 46 deaths, most were boys, with a median age of 7, and nearly half had underlying health conditions, particularly neurologic diseases.
  • COVID-19 deaths often occurred quickly after diagnosis, highlighting the need for improved access to medical care for children during the pandemic.
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Article Synopsis
  • This study investigates the epidemiological characteristics and transmission patterns of COVID-19 among children and adolescents in South Korea, focusing on data from January 2020 to June 2021.
  • It analyzed 14,967 confirmed cases in the 0-18 age group, finding that those aged 16-18 were most affected, with transmission primarily occurring through friends and family.
  • The findings indicate that adolescents aged 13-18 are more frequently infected by peers rather than adults, providing insights for school policies and vaccination strategies.
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This report describes the pattern of the spread of the pandemic H1N1 2009 and compares 3 monitoring tools until the 57th week or January 31, 2010. The 1st week was from December 28th, 2008 to January 3rd, 2009. A total of 740,835 patients were reported to be infected with pandemic H1N1 2009 and 225 patients were reported to have died of pandemic H1N1 2009.

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