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5. Seroprevalence of severe acute respiratory syndrome coronavirus 2 antibodies during the third wave of coronavirus disease in the Seoul metropolitan area of Korea

Author

Yoon, Kyuhyun, primary, Kim, Jayeun, additional, Peck, Kyong Ran, additional, Kim, Hyun Soo, additional, Lee, Hyukmin, additional, Hwang, Yoo-Sung, additional, Lee, Soon Young, additional, Cho, Sung-il, additional, Lee, Hun Jae, additional, Kim, Yeongyeong, additional, Kim, Brian Byoungguk, additional, Lee, June-Woo, additional, Kim, Ah-Ra, additional, Do, HyeonNam, additional, and Kim, Dong-Hyun, additional

Published
2022
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25. Incidence, inhospital mortality, and readmission among patients with alcoholic hepatitis in Korea: A nationwide study.

Author

Lee, Jin Yong, Cho, Yuri, Hong, Min Hee, Kim, Jayeun, Lee, Dong Hyeon, Jung, Yong Jin, Kim, Byeong Gwan, Lee, Kook Lae, and Kim, Won

Subjects
HOSPITAL mortality, INTERNATIONAL Statistical Classification of Diseases & Related Health Problems, PATIENT readmissions, LOGISTIC regression analysis, HEPATITIS, HEALTH insurance
Abstract

Background and Aim: Alcoholic hepatitis (AH) ranks among the most costly diseases in South Korea. However, accurate hospitalization incidence rates, mortality rates, and contributing factors have not been investigated in South Korea. This study aimed to provide the nationwide incidence of hospitalization, inhospital mortality, and readmission rates for South Korean patients with AH. Methods: Using the Korean Health Insurance Review and Assessment service database, a total of 39 800 inpatient cases from 2008 to 2012 were identified based on the International Classification of Diseases, 10th Revision diagnosis code for AH (K70.1). Standardized hospitalization incidence and mortality rates were calculated, and logistic regression analysis was performed to identify risk factors for inhospital mortality and readmission. Follow‐up data for those admitted in 2008 were collected to assess readmissions. Results: The standardized incidence rate for AH hospitalization per 105 person/year decreased from 19 in 2008 to 14 in 2012 (P = 0.001). The annual inhospital mortality rate ranged from 0.2% to 0.5%. Inhospital mortality was significantly higher in older patients (odds ratio [OR], 1.36) and those with cirrhosis (OR, 4.40). The readmission rate for patients admitted in 2008 was 34.0%. Male sex (OR, 1.21) and low economic status (OR, 2.35) were significantly associated with readmission, whereas older age (OR, 0.96), cirrhosis (OR, 0.77), and urban residency (OR, 0.68) were inversely associated with readmission. Conclusions: This study captured a 5‐year epidemiologic period in South Korea of patients with AH to reflect the real burden of AH and to provide valuable information to policy‐makers assessing public health priorities. [ABSTRACT FROM AUTHOR]

Published
2019
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27. Absolute Temperature Mean Changes and Emergency Department Visits for Asthma in Seoul, Korea: A Case-Crossover Study

Author

Kim Ho and Kim Jayeun

Subjects
medicine.medical_specialty, business.industry, Respiratory disease, Asthma symptoms, Emergency department, medicine.disease, Affect (psychology), Crossover study, respiratory tract diseases, immune system diseases, Emergency medicine, medicine, General Earth and Planetary Sciences, sense organs, skin and connective tissue diseases, business, General Environmental Science, Asthma
Abstract

Background Although weather changes are known to cause asthma symptoms, there were not many studies how absolute daily temperature change affect on asthma and their impact on asthma-related health-...

Published
2013

40. Seroprevalence of SARS-CoV-2 antibodies during the third wave of COVID-19 in the Seoul metropolitan area of Korea.

Author

Yoon K, Kim J, Peck KR, Kim HS, Lee H, Hwang YS, Lee SY, Cho SI, Lee HJ, Kim YG, Kim B, Lee JW, Kim AR, Do HN, and Kim DH

Subjects
Humans, Female, Seroepidemiologic Studies, Seoul epidemiology, SARS-CoV-2, Antibodies, Viral, COVID-19 epidemiology, COVID-19 Serological Testing
Abstract

Objectives: After the third wave of coronavirus disease 2019 (COVID-19), by mid-February 2021, approximately 0.16% of the Korean population was confirmed positive, which appeared to be among the lowest rates worldwide at that time. However, asymptomatic transmission is challenging for COVID-19 surveillance. Therefore, a community-based serosurvey of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection was conducted to understand the effectiveness of Korea's strong containment strategy., Methods: We collected 5,002 residual sera samples from January 30 to March 3, 2021, from 265 medical facilities in Seoul, 346 in Gyeonggi Province, and 57 in Incheon. Sixty samples from tertiary institutions were excluded. We defined the sub-regions according to the addresses of the medical facilities where the specimens were collected. Elecsys Anti-SARS-CoV-2 was used for screening, and positivity was confirmed using the SARS-CoV-2 sVNT Kit. Prevalence was estimated using sampling weights and the Wilson score interval for a binomial proportion with a 95% confidence interval., Results: Among the 4,942 specimens, 32 and 25 tested positive for COVID-19 in the screening and confirmatory tests, respectively. The overall crude prevalence of SARS-CoV-2 antibodies was 0.51%. The population-adjusted overall prevalence was 0.55% in women and 0.38% in men. The region-specific estimation was 0.67% and 0.30% in Gyeonggi Province and Seoul, respectively. No positive cases were detected in Incheon., Conclusions: The proportion of undetected cases in Korea remained low as of early 2021. Therefore, an infection control strategy with exhaustive tracing and widespread pre-emptive testing appears to be effective in containing community spread of COVID-19.

Published
2022
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