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Most-read articles are from the articles published in 2022 during the last three month.

COVID-19: Special Article
Mental health of Korean adults before and during the COVID-19 pandemic: a special report of the 2020 Korea National Health and Nutrition Examination Survey
Hyunsuk Jeong, Suyeon Park, Jihee Kim, Kyungwon Oh, Hyeon Woo Yim
Epidemiol Health. 2022;44:e2022042.   Published online April 25, 2022
DOI: https://doi.org/10.4178/epih.e2022042
  • 11,590 View
  • 510 Download
  • 14 Web of Science
  • 13 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Coronavirus disease 2019 (COVID-19) and the associated social distancing, limited freedom, and fear of an uncertain future are expected to have substantial mental health effects. We investigated mental health responses in the community during the first year of the COVID-19 pandemic in Korea.
METHODS
We used 2016-2019 and 2020 data from the Korea National Health and Nutrition Examination Survey (KNHANES) to assess pre-pandemic and pandemic mental health status, respectively, in terms of perceived severe stress, depression, and suicidal plans. All analyses were gender-stratified. Pre-specified subgroup analyses were performed according to age, employment status, and household income.
RESULTS
The percentage of Korean adults with suicidal plans increased significantly from 1.3%p (95% confidence interval [CI], 1.1 to 1.5) in 2016-2019 to 1.8%p (95% CI, 1.4 to 2.1) in 2020. Individuals in their 20s and 40s showed a marked increase in suicidal plans (1.2%p; 95% CI, 0.0 to 2.3 and 0.9%p; 95% CI, 0.0 to 1.8, respectively). In men, depression and perceived severe stress increased significantly from pre-COVID-19 to 2020. There was a 2.4%p (95% CI, 0.8 to 4.0) increase in depression among standard workers and a 2.9%p increase in depression in individuals in the second-highest quintile of household income from 2016 and 2018 to 2020.
CONCLUSIONS
As COVID-19 continued, mental health issues such as suicidal plans, depression, and severe stress increased significantly in young men and people in the second-highest quintile of household income. Proactive community mental health efforts are needed to prevent increases in the suicide rate resulting from prolonged exposure to the COVID-19 pandemic.
Summary
Korean summary
코로나19 이전에 비해 코로나19 유행 첫 해 동안에 전체 인구에서 자살 계획 유병율이 유의하게 증가하였고 특히 20대-40대에서 증가 비율이 높았다. PHQ-9으로 측정한 우울증 유병율은 전체 남성에서 증가하였고 특히 30대 남성에서 증가 비율이 높았다. 코로나19 영향으로 자살 계획과 우울증과 같은 정신 건강 문제가 젊은 성인에서 크게 증가하였기 때문에 이러한 정신건강 문제가 자살률 증가로 이어지는 것을 방지하기 위해 국가적 차원의 체계적인 정책과 적극적인 지역사회 정신건강 중재가 필요하다.
Key Message
There was a significant increase in the prevalence of suicidal plan in the overall population during the first year of COVID-19 pandemic compared to pre-COVID-19. In particular, suicide plans increased among those in their 20s and 40s. The prevalence of PHQ-9 detected depression increased in all men, especially among men in their 30s. As mental health problems such as suicide planning and depression have significantly increased among young adults due to the impact of COVID-19, systematic policies at the national level and active community mental health interventions are needed to prevent these mental health problems from leading to an increase in suicide rates.

Citations

Citations to this article as recorded by  
  • The Association of Acute Signs and Symptoms of COVID-19 and Exacerbation of Depression and Anxiety in Patients With Clinically Mild COVID-19: Retrospective Observational Study
    Sumi Sung, Su Hwan Kim, Changwoo Lee, Youlim Kim, Ye Seul Bae, Eui Kyu Chie
    JMIR Public Health and Surveillance.2023; 9: e43003.     CrossRef
  • The Risk of Major Depressive Disorder Due to Cataracts among the Korean Elderly Population: Results from the Korea National Health and Nutrition Examination Survey (KNHANES) in 2016 and 2018
    Min-Jin Kang, Kyung-Yi Do, Nayeon Park, Min-Woo Kang, Kyoung Sook Jeong
    International Journal of Environmental Research and Public Health.2023; 20(2): 1547.     CrossRef
  • Prevalence of Mental Disorders and Associated Factors in Korean Adults: National Mental Health Survey of Korea 2021
    Soo Jung Rim, Bong-Jin Hahm, Su Jeong Seong, Jee Eun Park, Sung Man Chang, Byung-Soo Kim, Hyonggin An, Hong Jin Jeon, Jin Pyo Hong, Subin Park
    Psychiatry Investigation.2023; 20(3): 262.     CrossRef
  • The association mental health of adolescents with economic impact during the COVID-19 pandemic: a 2020 Korean nationally representative survey
    Hanul Park, Kang-Sook Lee
    BMC Public Health.2023;[Epub]     CrossRef
  • Obstructive sleep apnea related to mental health, health-related quality of life and multimorbidity: A nationwide survey of a representative sample in Republic of Korea
    Mee-Ri Lee, Sung Min Jung, Frances Chung
    PLOS ONE.2023; 18(6): e0287182.     CrossRef
  • Comparison of Mental Health between the Older People Living Alone and Older People Not Living Alone before and during the COVID-19 Pandemic: Using the 2019-2020 Korea Community Health Survey
    Kyong Sil Park, Yeojoo Chae
    Journal of Health Informatics and Statistics.2023; 48(2): 132.     CrossRef
  • The risk of obstructive sleep apnea is highly correlated with depressive symptoms among the Korean adults population: results from the 2020 Korea National Health and Nutrition Examination Survey
    Mi-Sun Lee, Hooyeon Lee
    BMC Psychiatry.2023;[Epub]     CrossRef
  • Associations between discrimination experiences and symptoms of depression and anxiety among transgender adults: a nationwide cohort study of 269 transgender adults in South Korea
    Sungsub Choo, Ranyeong Kim, Hyemin Lee, Yun-Jung Eom, Horim Yi, Rockli Kim, Seung-Sup Kim
    Social Psychiatry and Psychiatric Epidemiology.2023;[Epub]     CrossRef
  • Gender Inequalities in Mental Health During the COVID-19 Pandemic: A Population-based Study in Korea
    Minku Kang, Sarah Yu, Seung-Ah Choe, Daseul Moon, Myung Ki, Byung Chul Chun
    Journal of Preventive Medicine and Public Health.2023; 56(5): 413.     CrossRef
  • Mental health status of individuals with diabetes in Korea before and during the COVID-19 pandemic: a comparison of data from the Korean national health and nutrition examination surveys of 2018–2019 and 2020–2021
    Hyejin Jung
    BMJ Open.2023; 13(10): e074080.     CrossRef
  • Assessment of burnout level among clinical dental students during the COVID-19 pandemic
    Cumhur Korkmaz, Sibel Dikicier, Arzu Atay
    BMC Medical Education.2023;[Epub]     CrossRef
  • The mechanisms of nature-based therapy on depression, anxiety, stress, and life satisfaction: examining mindfulness in a two-wave mediation model
    Minjung Kang, Yeji Yang, Hyunjin Kim, Songhie Jung, Hye-Young Jin, Kee-Hong Choi
    Frontiers in Psychology.2023;[Epub]     CrossRef
  • Changes in the prevalence of metabolic syndrome in Korean adults after the COVID-19 outbreak
    Ji-Young Kwon, Sang-Wook Song
    Epidemiology and Health.2022; 44: e2022101.     CrossRef
COVID-19: Special Article
Obesity, hypertension, diabetes mellitus, and hypercholesterolemia in Korean adults before and during the COVID-19 pandemic: a special report of the 2020 Korea National Health and Nutrition Examination Survey
Ga Bin Lee, Yoonjung Kim, Suyeon Park, Hyeon Chang Kim, Kyungwon Oh
Epidemiol Health. 2022;44:e2022041.   Published online April 25, 2022
DOI: https://doi.org/10.4178/epih.e2022041
  • 12,164 View
  • 607 Download
  • 11 Web of Science
  • 16 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We investigated trends in obesity, hypertension, diabetes, and hypercholesterolemia before and during the coronavirus disease 2019 (COVID-19) pandemic in the Korean adult population.
METHODS
Data from 60,098 participants in the Korea National Health and Nutritional Examination Survey between 2011 and 2020 aged ≥19 were used. The age-standardized prevalence and annual percent changes (APCs) were calculated for obesity (body mass index ≥25 kg/m2), hypertension (systolic/diastolic blood pressure ≥140/90 mmHg or under treatment), diabetes (hemoglobin A1c ≥6.5%, fasting glucose ≥126 mg/dL, physician diagnosis, or under treatment), and hypercholesterolemia (total cholesterol ≥240 mg/dL or under treatment).
RESULTS
Over the past decade (2011-2020), the age-standardized APCs (95% confidence intervals) for obesity, hypertension, diabetes and hypercholesterolemia were 3.0% (2.1 to 3.8), 0.1% (-1.3 to 1.5), 1.5% (-1.0 to 4.0) and 8.0% (5.7 to 10.3), respectively, in men; and -0.2% (-1.5 to 1.2), -0.5% (-1.9 to 0.9), -0.1% (-2.3 to 2.2) and 5.9% (3.9 to 8.0), respectively, in women. In 2020 compared to the previous 3 years (2017-2019), obesity, hypertension, diabetes, and hypercholesterolemia increased in men (6.0, 1.8, 1.9, and 2.8%p, respectively), but an increase was not apparent in women (2.5, -1.1, 0.8, and 0.7%p, respectively).
CONCLUSIONS
An increase in major chronic diseases was observed in Korean adults, especially men, during the COVID-19 pandemic. In order to reduce the burden of cardiovascular and metabolic diseases in the future, effective intervention strategies need to be developed according to the characteristics of the target groups.
Summary
Korean summary
한국인의 비만, 고혈압, 당뇨 및 고지혈증 유병률은 지난 10년간 전반적으로 증가하는 경향을 보였다. 특히, 코로나 19가 유행한 2020년에 남성의 주요 만성질환 유병률은 지난 3년 평균치와 비교하였을 때 모두 유의하게 증가하였다. 반면, 여성에서 만성질환 유병률의 뚜렷한 증가는 관찰되지 않았다.
Key Message
During COVID-19 pandemic, the overall increase in major chronic diseases was observed in Korean adults, and this trend was prominent in men. Accordingly, target-specific intervention strategies need to be developed to reduce the burden of cardiovascular and metabolic diseases in the future.

Citations

Citations to this article as recorded by  
  • Sleep Deficit as a Risk Factor for Hypertension in Korean Adults
    Mi-Joon Lee, Bum-Jeun Seo, Inmyung Song
    Sustainability.2023; 15(3): 2586.     CrossRef
  • Gene–Nutrient Interactions in Obesity: COBLL1 Genetic Variants Interact with Dietary Fat Intake to Modulate the Incidence of Obesity
    Junkyung Kwak, Dayeon Shin
    International Journal of Molecular Sciences.2023; 24(4): 3758.     CrossRef
  • Identifying the Associations of Nightly Fasting Duration and Meal Timing with Type 2 Diabetes Mellitus Using Data from the 2016–2020 Korea National Health and Nutrition Survey
    Junkyung Kwak, Kyeong-A Jang, Haeng-Ran Kim, Min-Sook Kang, Kyung Won Lee, Dayeon Shin
    Nutrients.2023; 15(6): 1385.     CrossRef
  • Changes in the Prevalences of Obesity, Abdominal Obesity, and Non-Alcoholic Fatty Liver Disease among Korean Children during the COVID-19 Outbreak
    Kyungchul Song, Juyeon Yang, Hye Sun Lee, Su Jin Kim, Myeongseob Lee, Junghwan Suh, Ahreum Kwon, Ho-Seong Kim, Hyun Wook Chae
    Yonsei Medical Journal.2023; 64(4): 269.     CrossRef
  • Revisiting the Diabetes Crisis in Korea: Call for Urgent Action
    Jun Sung Moon
    The Journal of Korean Diabetes.2023; 24(1): 1.     CrossRef
  • Changes in dietary habits and chronic diseases before and after COVID-19 by regions using data from the 2018-2020 Korea Community Health Survey and Consumer Behavior Survey for Foods: a cross-sectional study
    Surim Park, Eun-hee Jang, Seungmin Lee
    Korean Journal of Community Nutrition.2023; 28(2): 124.     CrossRef
  • Trends in socioeconomic inequalities in obesity among Korean adolescents: the Korea Youth Risk Behavior Web-based Survey (KYRBS) 2006 to 2020
    Eunji Kim, Ga Bin Lee, Dong Keon Yon, Hyeon Chang Kim
    Epidemiology and Health.2023;[Epub]     CrossRef
  • Changes in food and nutrient intakes in Korean adults before and during the coronavirus disease 2019 pandemic : data from the 2011-2020 Korea National Health and Nutrition Examination Survey
    Kyungwon Oh, Suyeon Park, Sihyun Park, Sungha Yun, Hongseok Choi, Eun Kyeong Jeong
    Epidemiology and Health.2023;[Epub]     CrossRef
  • Clinical Features and Visual Prognosis of Retinal Vein Occlusion in Those under 50 Years Old
    Soyeon Jung, Haeeun Shin, Hee Seung Chin
    Journal of the Korean Ophthalmological Society.2023; 64(6): 490.     CrossRef
  • Korea hypertension fact sheet 2022: analysis of nationwide population-based data with a special focus on hypertension in the elderly
    Hyeon Chang Kim, Hokyou Lee, Hyeok-Hee Lee, Gabin Lee, Eunji Kim, Moses Song, Jenny Moon, Yeeun Seo
    Clinical Hypertension.2023;[Epub]     CrossRef
  • Comorbidity in patients with arterial hypertension in therapeutic practice
    D.V. Korsunsky, S.A. Berns, A.R. Novikova, O.M. Drapkina
    Profilakticheskaya meditsina.2023; 26(8): 100.     CrossRef
  • The Effect of Baekhogainsam-tang on Metabolism through Modulation of the Gut Microbiota and Gene Expression in High-Fat Diet Induced Metabolic Syndrome Animal Model
    Min-Jin Cho, Song-Yi Han, Soo Kyoung Lim, Eun-Ji Song, Young-Do Nam, Hojun Kim
    Journal of Korean Medicine Rehabilitation.2023; 33(3): 1.     CrossRef
  • Hypertension in the Russian population during the COVID-19 pandemic: sex differences in prevalence, treatment and its effectiveness. Data from the ESSE-RF3 study
    Yu. A. Balanova, O. M. Drapkina, V. A. Kutsenko, A. E. Imaeva, A. V. Kontsevaya, S. A. Maksimov, G. A. Muromtseva, M. B. Kotova, N. S. Karamnova, S. E. Evstifeeva, A. V. Kapustina, O. A. Litinskaya, M. S. Pokrovskaya, E. M. Filichkina, O. E. Ivlev, L. I.
    Cardiovascular Therapy and Prevention.2023; 22(8S): 3785.     CrossRef
  • Prevalence and management of hypertension in Korean adults
    Hyeon Chang Kim
    Journal of the Korean Medical Association.2022; 65(10): 633.     CrossRef
  • Association between Mental Health and Hand Hygiene Practices in Adults with Hypertension and Diabetes during the COVID-19 Pandemic: The 2020 Korea Community Health Survey
    Pius Kim, Hae Ran Kim
    Healthcare.2022; 10(10): 1912.     CrossRef
  • Changes in the prevalence of metabolic syndrome in Korean adults after the COVID-19 outbreak
    Ji-Young Kwon, Sang-Wook Song
    Epidemiology and Health.2022; 44: e2022101.     CrossRef
COVID-19: Original Article
Depression, anxiety, and stress in Korean general population during the COVID-19 pandemic
Hooyeon Lee, Dongwoo Choi, Jung Jae Lee
Epidemiol Health. 2022;44:e2022018.   Published online January 18, 2022
DOI: https://doi.org/10.4178/epih.e2022018
  • 12,709 View
  • 620 Download
  • 14 Web of Science
  • 14 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The aim of this study was to investigate the prevalence and risk factors of poor mental health in the general Korean population during the coronavirus disease 2019 (COVID-19) pandemic.
METHODS
This cross-sectional, population-based, online survey-based study was conducted from November 5 to 20, 2020 and included adults aged 20-49 years in Chungnam Province, Korea. A total of 549 adults were included.
RESULTS
In total, 18.8% of the participants had symptoms of depression, 10.6% had symptoms of anxiety, and 5.1% had a high level of perceived stress during the COVID-19 pandemic. Higher levels of stress (odds ratio [OR], 3.13; 95% confidence interval [CI], 1.13 to 8.67), anxiety (OR, 2.33; 95% CI, 1.09 to 4.49), and depression (OR, 3.00; 95% CI, 1.64 to 5.50) were found among never married, widowed, divorced, and separated people than among married/cohabiting/partnered participants. Participants who felt increased stress at home during the COVID-19 outbreak reported more depression (OR, 2.45; 95% CI, 1.49 to 4.05) and anxiety (OR, 2.42; 95% CI, 1.31 to 4.50). Women had higher risks of anxiety (OR, 1.97; 95% CI, 1.09 to 3.58) and stress (OR, 6.40; 95% CI, 2.30 to 17.85) than men. Participants with the highest household income were less likely to report symptoms of stress than those with the lowest household income (OR, 0.24; 95% CI, 0.06 to 0.96).
CONCLUSIONS
The participants in this study exhibited poor mental health index scores, suggesting that some people are at risk for mental health problems during the COVID-19 pandemic. Being married was independently and significantly associated with a lower likelihood of depression, anxiety, and stress.
Summary
Korean summary
이 연구는 코로나-19 유행 기간 동안 정신건강 현황과 위험 요인을 알아보기 위한 단면연구이다. 코로나 19 유행 이후 가정내 스트레스가 증가했다고 응답한 경우 우울증과 불안감의 유병률이 높았다. 반면, 남성인 경우, 결혼했거나 동거인과 같이 살고 있는 경우에는 우울증, 불안 또는 스트레스의 유병률이 통계적으로 유의하게 낮았다. 마스크 착용하기, 비대면 활동 증가, 또는 사회적 거리두기 등 코로나 19의 유행을 통제하기 위한 많은 정책은 개인의 일상생활과 정신건강에 많은 영향을 미쳤다. 이 연구는 취약 집단을 발굴하고, 정신건강 회복을 위한 전략을 개발하는데 기초자료를 제공할 수 있다.
Key Message
This study revealed high prevalence rates of depression, anxiety, and stress in the general population of Korea aged 20-49 years during the COVID-19 pandemic. Participants who felt increased stress at home reported more depression and anxiety. Men and being married were significantly associated with a lower likelihood of depression, anxiety, or stress. The COVID-19 pandemic has been a traumatic event. In addi­tion, the policies created to prevent its spread have disrupted daily living for the general population. Implement­ing strategies to promote resilience and support psychologically vulnerable individuals during the COVID-19 cri­sis is of fundamental importance.

Citations

Citations to this article as recorded by  
  • Protective Behaviors Against COVID-19 and Related Factors in Korean Adults With Depressive Symptoms: Results From an Analysis of the 2020 Korean Community Health Survey
    Ho-Jun Cho, Kyeong-Sook Choi, Jin-Young Lee, Ji-Ae Yun, Je-Chun Yu
    Psychiatry Investigation.2024; 21(1): 74.     CrossRef
  • Differences in Functional Level and Central Symptom of Network Structures in the Patients Seeking Treatment for Panic Disorder Before and During the COVID-19 Pandemic
    Hyun-Ju Kim, Minji Bang, Chun Il Park, Chongwon Pae, Sang-Hyuk Lee
    Psychiatry Investigation.2023; 20(3): 245.     CrossRef
  • Prevalence of Mental Disorders and Associated Factors in Korean Adults: National Mental Health Survey of Korea 2021
    Soo Jung Rim, Bong-Jin Hahm, Su Jeong Seong, Jee Eun Park, Sung Man Chang, Byung-Soo Kim, Hyonggin An, Hong Jin Jeon, Jin Pyo Hong, Subin Park
    Psychiatry Investigation.2023; 20(3): 262.     CrossRef
  • Physical activity and mental health in Brazilian university students: An analysis in different sexes during the COVID-19 pandemic
    Gabriela Carvalho Jurema Santos, Mateus Jurema Rino, Victor Luiz da Silva Lima, José Adilson Santos, Débora Eduarda da Silva Fidelis, Tiago Lacerda Ramos, Adelmo José de Andrade, Camila Tenório Calazans de Lira, Matheus Santos de Souza Fernandes
    Biomedical Human Kinetics.2023; 15(1): 113.     CrossRef
  • Risk and protective factors of mental health during the COVID-19 pandemic: A cross-sectional study in Singapore
    Mythily Subramaniam, Edimansyah Abdin, Saleha Shafie, Peizhi Wang, Shazana Shahwan, Pratika Satghare, Boon Yiang Chua, Michael Y Ni, Phyllis Lun, Wen Lin Teh, Janhavi Ajit Vaingankar, Siow Ann Chong
    Annals of the Academy of Medicine, Singapore.2023; 52(5): 249.     CrossRef
  • Is social support associated with postpartum depression, anxiety and perceived stress among Korean women within the first year postpartum?
    Mi-Sun Lee, Jung Jae Lee, Soyeon Park, Seongju Kim, Hooyeon Lee
    Journal of Psychosomatic Obstetrics & Gynecology.2023;[Epub]     CrossRef
  • Pandemic stressors and mental health indicators in eight countries
    Salma M Abdalla, Shaffi Fazaludeen Koya, Samuel B. Rosenberg, Isaac B. Stovall, Olivia Biermann, Zahra Zeinali, Gregory H. Cohen, Catherine K. Ettman, Sandro Galea
    Social Psychiatry and Psychiatric Epidemiology.2023;[Epub]     CrossRef
  • Long COVID in Pakistan: a cross-sectional analysis of health and psychosocial outcomes
    Madeeha Khan, Sadaf Majeed, Quratul Ain, Amjad Nawaz, Khadija Awais Sumra, Vilma Lammi, Faizan Nihal, Aleena Afrah, Ejaz Ahmed Khan, Mohammad Iqbal Khan, Fouzia Sadiq
    Psychology, Health & Medicine.2023; : 1.     CrossRef
  • Assessing Knowledge, Preventive Practices, and Depression Among Chinese International Students and Local Korean Students in South Korea During the COVID-19 Pandemic: An Online Cross-Sectional Study
    Xiaoxu Jiang, Bo Zhao, Eun Woo Nam, Fanlei Kong
    Frontiers in Psychiatry.2022;[Epub]     CrossRef
  • Association of compliance with COVID-19 public health measures with depression
    Ju An Byun, Tae Jun Sim, Tae Yoon Lim, Sung-In Jang, Seung Hoon Kim
    Scientific Reports.2022;[Epub]     CrossRef
  • Factors associated with depressive symptomatology during the COVID-19 pandemic in Mexico: A 2021 national survey
    Pablo D. Valencia, Maria A. Torres-Quispe, Sofía Sánchez-Cayo, Ricardo F. Reyes-Aguilar, Alexander G. Acevedo-Cahuana
    Journal of Affective Disorders.2022; 317: 212.     CrossRef
  • Depression and anxiety in later COVID-19 waves across Europe: New evidence from the European COvid Survey (ECOS)
    André Hajek, Sebastian Neumann-Böhme, Iryna Sabat, Aleksandra Torbica, Jonas Schreyögg, Pedro Pita Barros, Tom Stargardt, Hans-Helmut König
    Psychiatry Research.2022; 317: 114902.     CrossRef
  • Socio-economic factors associated with mental health outcomes during the COVID-19 pandemic in South Korea
    Seo Yoon Lee, Jung Jae Lee, Hooyeon Lee
    Frontiers in Public Health.2022;[Epub]     CrossRef
  • Mental health of Korean adults before and during the COVID-19 pandemic: a special report of the 2020 Korea National Health and Nutrition Examination Survey
    Hyunsuk Jeong, Suyeon Park, Jihee Kim, Kyungwon Oh, Hyeon Woo Yim
    Epidemiology and Health.2022; 44: e2022042.     CrossRef
COVID-19: Original Article
Body mass index and prevalence of metabolic syndrome among Korean adults before and after the COVID-19 outbreak: a retrospective longitudinal study
Joo-Eun Jeong, Hoon-Ki Park, Hwan-Sik Hwang, Kye-Yeung Park, Myoung-Hye Lee, Seon-Hi Shin, Nayeon Choi
Epidemiol Health. 2023;45:e2023081.   Published online August 29, 2023
DOI: https://doi.org/10.4178/epih.e2023081
  • 3,236 View
  • 110 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Studies evaluating weight changes during the coronavirus disease 2019 (COVID-19) pandemic have yielded inconsistent results, and most of those studies were based on self-reported anthropometric measures. We investigated changes in body mass index (BMI), professionally measured waist circumference (WC), and metabolic syndrome components from before to during the pandemic in a sample of the adult population in Korea.
METHODS
This retrospective study included 1,118 male and female (age≥18 years) who underwent health checkups at a university medical center between January 1, 2016 and March 31, 2022. Changes in BMI, lifestyles, and metabolic syndrome components during the pandemic were analyzed using the paired t-test, McNemar test, generalized estimating equations, and repeated-measures analysis of variance.
RESULTS
Changes in body weight, BMI, and body fat percentage during the pandemic were not clinically significant. However, statistically significant results were found for decreased physical activity (p<0.001) and WC (p<0.001), and exacerbation of all metabolic syndrome components (except serum triglyceride levels). Moreover, the metabolic syndrome prevalence increased significantly from 20.2% to 31.2% during the pandemic (p<0.001). The prevalence of abdominal obesity and high fasting blood glucose levels also significantly increased from 2019 to 2021.
CONCLUSIONS
Metabolic syndrome, its components, and fat distribution worsened significantly after the implementation of social distancing and lockdowns, despite no clinically significant changes in body weight and BMI. Further studies on the post- pandemic period should investigate the long-term impact of social lockdowns on BMI and the prevalence of metabolic syndrome.
Summary
Korean summary
본 연구에서는 한국인 성인들의 코로나 팬대믹으로 인한 사회적 거리 두기, 봉쇄 정책 전 후의 체질량지수, 생활습관, 그리고 대사증후군과 그 구성 요소들의 변화를 건강검진을 통해 측정한 객관적인 지표의 변화를 통해 알아보고자 하였다. 연구 결과, 사회적 거리 두기 및 봉쇄 전후의 체질량지수와 체중은 유의미한 변화가 없었으나, 신체 활동량은 유의미하게 감소하였고, 체지방률, 허리둘레가 늘어났다. 그리고 중성지방을 제외하고 다른 대사증후군의 구성 요소인 혈압, 고밀도지단백 콜레스테롤, 공복혈당 지표는 악화되었다. 하위 그룹 분석에서 매년 검진을 시행 받은 대상자들 및 고혈압, 당뇨병, 이상지질혈증 약을 복용하지 않는 대상자들의 코로나-19 전후 연도별 대사 지표의 변화를 분석한 결과, 복부비만 유병률과 공복 혈당의 증가 양상이 뚜렷하였다.
Key Message
Although there was no significant change in BMI and weight, the prevalence of metabolic syndrome, abdominal obesity, and fasting blood glucose level prominently worsened after the implementation of social distancing and lockdowns. Such findings may indicate deterioration of insulin resistance during the COVID-19 pandemic. This study provides valuable information for healthcare professionals, policymakers, and the general public towards mitigating the negative consequences of the pandemic on metabolic health, regardless of weight gain.
COVID-19: Original Article
Model-based cost-effectiveness analysis of oral antivirals against SARS-CoV-2 in Korea
Youngji Jo, Sun Bean Kim, Munkhzul Radnaabaatar, Kyungmin Huh, Jin-Hong Yoo, Kyong Ran Peck, Hojun Park, Jaehun Jung
Epidemiol Health. 2022;44:e2022034.   Published online March 12, 2022
DOI: https://doi.org/10.4178/epih.e2022034
  • 11,984 View
  • 644 Download
  • 11 Web of Science
  • 11 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Many countries have authorized the emergency use of oral antiviral agents for patients with mild-to-moderate cases of coronavirus disease 2019 (COVID-19). We assessed the cost-effectiveness of these agents for reducing the number of severe COVID-19 cases and the burden on Korea’s medical system.
METHODS
Using an existing model, we estimated the number of people who would require hospital/intensive care unit (ICU) admission in Korea in 2022. The treatment scenarios included (1) all adult patients, (2) elderly patients only, and (3) adult patients with underlying diseases only, compared to standard care. Based on the current health system capacity, we calculated the incremental costs per severe case averted and hospital admission for each scenario.
RESULTS
We estimated that 236,510 COVID-19 patients would require hospital/ICU admission in 2022 with standard care only. Nirmatrelvir/ritonavir (87% efficacy) was predicted to reduce this number by 80%, 24%, and 17% when targeting all adults, adults with underlying diseases, and elderly patients (25, 8, and 4%, respectively, for molnupiravir, with 30% efficacy). Nirmatrelvir/ritonavir use is likely to be cost-effective, with predicted costs of US$8,878, US$8,964, and US$1,454, per severe patient averted for the target groups listed above, respectively, while molnupiravir is likely to be less cost-effective, with costs of US$28,492, US$29,575, and US$7,915, respectively.
CONCLUSIONS
In Korea, oral treatment using nirmatrelvir/ritonavir for symptomatic COVID-19 patients targeting elderly patients would be highly cost-effective and would substantially reduce the demand for hospital admission to below the capacity of the health system if targeted to all adult patients instead of standard care.
Summary
Korean summary
본 연구는 감염병 수리모형을 바탕으로 두가지 항바이러스제의 (nirmatrelvir/ritonavir와 molnupiravir) 비용 효익을 평가하였다. 본 모델에 따르면, 2022년 한국에서, 현재 의료시스템의 수용한계를 넘는 코로나 19 대유행이 발생할 때, nirmatrelvir/ritonavir 를 코로나 감염 및 증상 있는 고령층 환자들을 대상으로 투여할 경우 높은 비용 효익이 기대되고 (중증환자 1명 감소효과에$1,454 비용소요), 성인 환자 대상으로 투여할 경우, (molnupiravir이나 nirmatrelvir/ritonavir를 투여하지 않는) 일반 치료에 비해서 전체 입원 수요를 80% 줄일 것으로 기대된다.
Key Message
Given an expected high epidemic resurgence in 2022 that could exceed South Korea’s current health system capacity, oral treatment using nirmatrelvir/ritonavir for symptomatic COVID-19 patients may be a highly cost-effective solution if targeted to elderly patients ($1,454 per severe case averted) and substantially reduce the demand for hospital admission (80%, 188,478 patients) below the capacity of the health system if targeted to all adult patients compared to standard care.

Citations

Citations to this article as recorded by  
  • Cost-Utility Model of Nirmatrelvir/Ritonavir in Brazil: Analysis of a Vaccinated Population
    Ricardo R.A. Fernandes, Bruno M. Barros, Milene R. da Costa, Carlos A.S. Magliano, Bernardo R. Tura, Quenia Cristina D. Morais, Marisa Santos
    Value in Health Regional Issues.2024; 40: 74.     CrossRef
  • Impact of the Use of Oral Antiviral Agents on the Risk of Hospitalization in Community Coronavirus Disease 2019 Patients (COVID-19)
    Terry Cheuk-Fung Yip, Grace Chung-Yan Lui, Mandy Sze-Man Lai, Vincent Wai-Sun Wong, Yee-Kit Tse, Bosco Hon-Ming Ma, Elsie Hui, Maria K W Leung, Henry Lik-Yuen Chan, David Shu-Cheong Hui, Grace Lai-Hung Wong
    Clinical Infectious Diseases.2023; 76(3): e26.     CrossRef
  • Nirmatrelvir plus ritonavir in COVID-19: a profile of its use
    Hannah A. Blair
    Drugs & Therapy Perspectives.2023; 39(2): 41.     CrossRef
  • Cost-effectiveness analysis of ritonavir boosted nirmatrelvir for adult outpatients with mild to moderate COVID-19 in a European health system
    Philip Wikman-Jorgensen, José María Ibarra, Carlos Devesa, Jorge Peris, Jara Llenas-García
    European Journal of Internal Medicine.2023; 118: 133.     CrossRef
  • Assessing the cost-effectiveness of annual COVID-19 booster vaccination in South Korea using a transmission dynamic model
    Wongyeong Choi, Eunha Shim
    Frontiers in Public Health.2023;[Epub]     CrossRef
  • Multi-Faceted Analysis of COVID-19 Epidemic in Korea Considering Omicron Variant: Mathematical Modeling-Based Study
    Youngsuk Ko, Victoria May Mendoza, Renier Mendoza, Yubin Seo, Jacob Lee, Jonggul Lee, Donghyok Kwon, Eunok Jung
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
  • Adjusting non-pharmaceutical interventions based on hospital bed capacity using a multi-operator differential evolution
    Victoria May P. Mendoza, Renier Mendoza, Jongmin Lee, Eunok Jung
    AIMS Mathematics.2022; 7(11): 19922.     CrossRef
  • The Possible Impact of Nationwide Vaccination on Outcomes of the COVID-19 Epidemic in North Korea: A Modelling Study
    Sung-mok Jung, Jaehun Jung
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
  • Medications for early treatment of COVID ‐19 in Australia
    Adam Polkinghorne, James M Branley
    Medical Journal of Australia.2022;[Epub]     CrossRef
  • Comparative effectiveness of sotrovimab and molnupiravir for prevention of severe covid-19 outcomes in patients in the community: observational cohort study with the OpenSAFELY platform
    Bang Zheng, Amelia C A Green, John Tazare, Helen J Curtis, Louis Fisher, Linda Nab, Anna Schultze, Viyaasan Mahalingasivam, Edward P K Parker, William J Hulme, Sebastian C J Bacon, Nicholas J DeVito, Christopher Bates, David Evans, Peter Inglesby, Henry D
    BMJ.2022; : e071932.     CrossRef
  • Treatment Options for Patients With Mild-to-Moderate Coronavirus Disease 2019 in Korea
    Jaehyun Jeon, BumSik Chin
    Journal of Korean Medical Science.2022;[Epub]     CrossRef
Original Articles
Folate, vitamin B12, and homocysteine status in the Korean population: data from the 2013-2015 Korea National Health and Nutrition Examination Survey
Sihan Song, Bo Mi Song, Hyun-Young Park
Epidemiol Health. 2024;46:e2024007.   Published online December 11, 2023
DOI: https://doi.org/10.4178/epih.e2024007
  • 2,016 View
  • 117 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We aimed to assess the serum folate, vitamin B12, and homocysteine status in Korean adolescents and adults using national data.
METHODS
Blood samples were collected from participants aged ≥10 years in the Korea National Health and Nutrition Examination Survey 2013-2015. The stored serum samples were used to measure folate, vitamin B12, and homocysteine concentrations. A total of 8,016 participants were included in this analysis. Unweighted descriptive statistics and adjusted geometric means of the B vitamins and homocysteine concentrations were estimated.
RESULTS
Females had higher serum folate and vitamin B12 concentrations and lower serum homocysteine concentrations than males. Folate deficiency (<6.8 nmol/L) and hyperhomocysteinemia (>15 μmol/L) were found in 8.6% and 11.8% of males, respectively. Approximately 3% of males had low or marginally low vitamin B12 status (≤221 pmol/L). Folate and vitamin B12 deficiencies and hyperhomocysteinemia were found in <2% of females. Suboptimal folate status was prevalent among adolescents and young adults, while suboptimal vitamin B12 status and hyperhomocysteinemia were relatively higher in older adults. Adjusted mean homocysteine concentrations were sharply decreased from the first to second decile of serum folate in males.
CONCLUSIONS
In the Korean population, the proportion of males who achieved desirable folate and homocysteine concentrations were lower than those of females. Although most Koreans have adequate vitamin B12, a suboptimal folate status is common, particularly among adolescents and young adults. These findings could establish a foundation for public health initiatives aimed at improving folate levels in the Korean population.
Summary
Korean summary
엽산과 비타민B12는 전 생애에 걸쳐 건강에 영향을 미치는 필수 비타민이다. 그러나 해당 비타민 상태에 대한 국내 자료는 부족한 실정이다. 본 연구는 국민건강영양조사 참여자로부터 수집된 혈청으로부터 엽산, 비타민B12, 그리고 이들의 기능성 지표인 호모시스테인 농도를 측정하였고 성별과 연령별 분포와 적합 상태를 평가하였다. 엽산 결핍과 고호모시스테인혈증은 남성에서 높은 유병률을 가졌다. 적정 엽산 상태를 충족하지 못하는 비율은 청소년과 젊은 성인에서 흔하게 관찰되었다. 대부분의 한국인은 충분한 비타민B12 수준을 가졌으나, 노인의 경우 정기적인 평가가 필요하다. 본 연구는 한국인이 최적의 엽산과 비타민B12 상태를 유지하기 위한 기반적 근거를 제공한다.
Key Message
Folate and vitamin B12 have significant health impacts throughout the life cycle. However, national-level data on B vitamins in Korea are limited. Serum folate, vitamin B12, and homocysteine concentrations were measured from samples stored during the national survey. In our study, the proportions of folate deficiency and hyperhomocysteinemia were higher in men than in women.Suboptimal folate status was common among adolescents and young adults. Most Koreans had adequate levels of vitamin B12; however, regular monitoring is warranted, especially in the older population. The current data provide a future direction for achieving optimal B vitamin status in the Korean population.
Effective vaccination strategies to control COVID-19 in Korea: a modeling study
Youngsuk Ko, Kyong Ran Peck, Yae-Jean Kim, Dong-Hyun Kim, Eunok Jung
Epidemiol Health. 2023;45:e2023084.   Published online September 7, 2023
DOI: https://doi.org/10.4178/epih.e2023084
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  • 105 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
In Korea, as immunity levels of the coronavirus disease 2019 (COVID-19) in the population acquired through previous infections and vaccinations have decreased, booster vaccinations have emerged as a necessary measure to control new outbreaks. The objective of this study was to identify the most suitable vaccination strategy for controlling the surge in COVID-19 cases.
METHODS
A mathematical model was developed to concurrently evaluate the immunity levels induced by vaccines and infections. This model was then employed to investigate the potential for future resurgence and the possibility of control through the use of vaccines and antivirals.
RESULTS
As of May 11, 2023, if the current epidemic trend persists without further vaccination efforts, a peak in resurgence is anticipated to occur around mid-October of the same year. Under the most favorable circumstances, the peak number of severely hospitalized patients could be reduced by 43% (n=480) compared to the scenario without vaccine intervention (n=849). Depending on outbreak trends and vaccination strategies, the best timing for vaccination in terms of minimizing this peak varies from May 2023 to August 2023.
CONCLUSIONS
Our findings suggest that if the epidemic persist, the best timing for administering vaccinations would need to be earlier than currently outlined in the Korean plan. It is imperative to continue monitoring outbreak trends, as this is key to determining the best vaccination timing in order to manage potential future surges.
Summary
Korean summary
본 연구는 자연감염 혹은 백신으로 획득된 면역의 저하를 고려한 수리모델을 사용하여 COVID-19에 대한 백신 접종 전략 분석 결과를 보인다. 시뮬레이션 결과는 추가 백신 접종이 없을 경우 재유행의 정점이 800명을 넘을 것임을 나타내며, 적절한 시기에 백신을 접종하면 최대 재원 위중증환자수를 약 40%까지 줄일 수 있음을 보인다. 본 연구는 확진자 추세의 지속적인 모니터링이 백신 접종의 적정 시기를 결정하고 미래 COVID-19의 재유행을 효과적으로 관리하는 데 필요하다는 점을 강조한다.
Key Message
Our study analyzes strategies for COVID-19 through vaccination, using a mathematical model considering waning immunity from past infections and vaccinations. Results indicate that a resurgence peak would reach more than 800 without further vaccination, and suggest vaccination in proper timing can reduce the peak size of administered severe patients by up to approximately 40%. The study emphasizes the importance of ongoing monitoring of outbreak trends to manage vaccination timing and future COVID-19 surges effectively.
The impact of COVID-19 on screening for colorectal, gastric, breast, and cervical cancer in Korea
Hyeree Park, Seung Hee Seo, Jong Heon Park, Shin Hye Yoo, Bhumsuk Keam, Aesun Shin
Epidemiol Health. 2022;44:e2022053.   Published online June 21, 2022
DOI: https://doi.org/10.4178/epih.e2022053
  • 8,854 View
  • 443 Download
  • 10 Web of Science
  • 14 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The coronavirus disease 2019 (COVID-19) pandemic has affected the utilization of healthcare services, including participation in cancer screening programs. We compared cancer screening participation rates for colorectal, gastric, breast, and cervical cancers among participants in the National Cancer Screening Program (NCSP) in 2019 and 2020 to address the potential distraction effect of COVID-19 on cancer screening.
METHODS
Data from the NCSP for 4 cancer types (stomach, colorectal, breast, and cervical) in 2019 and 2020 were used to calculate cancer screening participation rates by calendar month, gender, age group, and geographical region. Monthly participation rates were analyzed per 1,000 eligible individuals.
RESULTS
The screening participation rate decreased in 2020 compared to 2019 for all 4 cancers: colorectal (40.5 vs. 35.3%), gastric (61.9 vs. 54.6%), breast (63.8 vs. 55.8%), and cervical (57.8 vs. 52.2%) cancers. Following 2 major COVID-19 waves in March and December 2020, the participation rates in the 4 types of cancer screening dropped compared with those in 2019. The highest decline was observed in the elderly population aged 80 years and older (percentage change: -21% for colorectal cancer; -20% for gastric cancer; -26% for breast cancer; -20% for cervical cancer).
CONCLUSIONS
After the 2 major COVID-19 waves, the screening participation rate for 4 types of cancer declined compared with 2019. Further studies are needed to identify the indirect effects of the COVID-19 pandemic on cancer patients, such as delayed diagnoses of cancer or excess cancer deaths.
Summary
Korean summary
본 연구는 코로나 대유행 기간 전과 후 대장암, 위암, 유방암, 자궁경부암 검진 수검률 차이를 비교하고자 하였다. 첫 코로나 확진자가 발생한 2020년을 코로나 대유행 기간, 전년도 기간인 2019년을 코로나 대유행 전 기간으로 설정하며 국민건강보험공단에서 집계된 전수자료를 이용하여 암 검진 대상자 수와 수검자 수를 비교 분석하였다. 4개 암종 모두에서 2019년도와 비교하여 2020년도에 전국적으로 수검률이 감소하는 경향이 있었으며, 1차 대유행이 있었던 3월과 3차 대유행 시기인 12월에 2019년도 동기간과 비교하여 수검률이 크게 감소하였고, 80대 이상 노인 인구에서 감소폭이 다른 연령대와 비교하여 크게 나타났다.
Key Message
We found decline of the colorectal, gastric, breast and cervical cancer screening participation rates in 2020 following the two major COVID-19 waves, compared with those of 2019, and the highest decline was observed in the elderly population aged 80 years and older.

Citations

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  • Emergency department visits of newly diagnosed cardiovascular disease patients in Korea during the COVID-19 pandemic
    Ji Yoon Baek, Seung Hee Seo, Sooyoung Cho, Jun-Bean Park, Bhumsuk Keam, Shin Hye Yoo, Aesun Shin
    Scientific Reports.2024;[Epub]     CrossRef
  • Decline in Cancer Diagnoses during the ‘Zero COVID’ Policy in Hong Kong: Indirect Spillover Impact of the COVID-19 Pandemic
    H.M. Youn, Y. Zhang, A. Liu, C.S. Ng, J. Liang, G.K.K. Lau, S.F. Lee, J. Lok, C.L.K. Lam, E.Y.F. Wan, J. Quan
    Clinical Oncology.2024;[Epub]     CrossRef
  • Impact of coronavirus disease 2019 on cancer care: How the pandemic has changed cancer utilization and expenditures
    Jinah Sim, Jihye Shin, Hyun Jeong Lee, Yeonseung Lee, Young Ae Kim, Chong-Chi Chiu
    PLOS ONE.2024; 19(2): e0296808.     CrossRef
  • Analysis of the current situation and related influencing factors of cervical precancer screening under the COVID-19
    Xiaohong Song, Yongbin Yang
    Biotechnology and Genetic Engineering Reviews.2023; : 1.     CrossRef
  • Willingness to Undergo Gastroscopy for Early Gastric Cancer Screening and Its Associated Factors During the COVID-19 Pandemic – A Nationwide Cross-Sectional Study in China
    Kejia Ma, Xuejie Chen, Xin Xiang, Xueyi Mao, Ningxin Zhu, Tianyu Wang, Shuyu Ye, Xiaoyan Wang, Minzi Deng
    Patient Preference and Adherence.2023; Volume 17: 505.     CrossRef
  • Impact of coronavirus disease 2019 pandemic on breast cancer surgery using the National Database of Japan
    Misuzu Fujita, Hideyuki Hashimoto, Kengo Nagashima, Kiminori Suzuki, Tokuzo Kasai, Kazuya Yamaguchi, Yoshihiro Onouchi, Daisuke Sato, Takehiko Fujisawa, Akira Hata
    Scientific Reports.2023;[Epub]     CrossRef
  • The impact of COVID-19 pandemic on diagnosis and management of gastrointestinal cancers
    Byung Soo Yoo, Ankit Patel, Kevin V. Houston, Alejandra Vargas, Ana Rosa Vilela Sangay, Steve M. D’Souza, David A. Johnson
    Exploration of Medicine.2023; : 356.     CrossRef
  • Changes in the Utilization of Health Care Services by Cancer Patients during the COVID-19 Pandemic
    Seung Hee Seo, Sooyoung Cho, Shin Hye Yoo, Bhumsuk Keam, Aesun Shin
    Yonsei Medical Journal.2023; 64(7): 463.     CrossRef
  • The Challenges of Gastric Cancer Surgery during the COVID-19 Pandemic
    Catalin Vladut Ionut Feier, Alaviana Monique Faur, Calin Muntean, Andiana Blidari, Oana Elena Contes, Diana Raluca Streinu, Sorin Olariu
    Healthcare.2023; 11(13): 1903.     CrossRef
  • Impact of Coronavirus Disease 2019 on Gastric Cancer Diagnosis and Stage: A Single-Institute Study in South Korea
    Moonki Hong, Mingee Choi, JiHyun Lee, Kyoo Hyun Kim, Hyunwook Kim, Choong-Kun Lee, Hyo Song Kim, Sun Young Rha, Gyu Young Pih, Yoon Jin Choi, Da Hyun Jung, Jun Chul Park, Sung Kwan Shin, Sang Kil Lee, Yong Chan Lee, Minah Cho, Yoo Min Kim, Hyoung-Il Kim,
    Journal of Gastric Cancer.2023; 23(4): 574.     CrossRef
  • Socioeconomic inequality in organized and opportunistic screening for gastric cancer: results from the Korean National Cancer Screening Survey 2009–2022
    Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kui Son Choi
    Frontiers in Public Health.2023;[Epub]     CrossRef
  • Impact of the COVID-19 Pandemic on Gastric Cancer Screening in South Korea: Results From the Korean National Cancer Screening Survey (2017–2021)
    Kyeongmin Lee, Mina Suh, Jae Kwan Jun, Kui Son Choi
    Journal of Gastric Cancer.2022; 22(4): 297.     CrossRef
  • Impact of frailty on survival and readmission in patients with gastric cancer undergoing gastrectomy: A meta-analysis
    Xiaoyan Wang, Yimeng Sun, Pei Wang, Yu Jie, Guodong Liu, Dandan Gong, Yu Fan
    Frontiers in Oncology.2022;[Epub]     CrossRef
  • Trends in breast cancer screening rates among Korean women: results from the Korean National Cancer Screening Survey, 2005-2020
    Soo Yeon Song, Yun Yeong Lee, Hye Young Shin, Bomi Park, Mina Suh, Kui Son Choi, Jae Kwan Jun
    Epidemiology and Health.2022; 44: e2022111.     CrossRef
Special Article
Incidence and case fatality of stroke in Korea, 2011-2020
Jenny Moon, Yeeun Seo, Hyeok-Hee Lee, Hokyou Lee, Fumie Kaneko, Sojung Shin, Eunji Kim, Kyu Sun Yum, Young Dae Kim, Jang-Hyun Baek, Hyeon Chang Kim
Epidemiol Health. 2024;46:e2024003.   Published online December 26, 2023
DOI: https://doi.org/10.4178/epih.e2024003
  • 1,930 View
  • 58 Download
AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
Stroke remains the second leading cause of death in Korea. This study was designed to estimate the crude, age-adjusted and age-specific incidence rates, as well as the case fatality rate of stroke, in Korea from 2011 to 2020.
METHODS
We utilized data from the National Health Insurance Services from January 1, 2002 to December 31, 2020, to calculate incidence rates and 30-day and 1-year case fatality rates of stroke. Additionally, we determined sex and age-specific incidence rates and computed age-standardized incidence rates by direct standardization to the 2005 population.
RESULTS
The crude incidence rate of stroke hovered around 200 (per 100,000 person-years) from 2011 to 2015, then surged to 218.4 in 2019, before marginally declining to 208.0 in 2020. Conversely, the age-standardized incidence rate consistently decreased by 25% between 2011 and 2020. When stratified by sex, the crude incidence rate increased between 2011 and 2019 for both sexes, followed by a decrease in 2020. Age-standardized incidence rates displayed a downward trend throughout the study period for both sexes. Across all age groups, the 30-day and 1-year case fatality rates of stroke consistently decreased from 2011 to 2019, only to increase in 2020.
CONCLUSIONS
Despite a decrease in the age-standardized incidence rate, the total number of stroke events in Korea continues to rise due to the rapidly aging population. Moreover, 2020 witnessed a decrease in incidence but an increase in case fatality rates.
Summary
Systematic Review
The prevalence of Q fever in the Eastern Mediterranean region: a systematic review and meta-analysis
Mozhgan Ahmadinezhad, Leila Mounesan, Amin Doosti-Irani, Manijeh Yousefi Behzadi
Epidemiol Health. 2022;44:e2022097.   Published online October 28, 2022
DOI: https://doi.org/10.4178/epih.e2022097
  • 6,122 View
  • 144 Download
  • 2 Web of Science
  • 4 Crossref
AbstractAbstract PDFSupplementary Material
Abstract
OBJECTIVES
Q fever, caused by the bacterium, is a major zoonotic disease around the world. This disease is common in the Eastern Mediterranean region; therefore, we conducted the first systematic review and meta-analysis on its prevalence in humans, animals, and ticks in the Eastern Mediterranean region.
METHODS
Major Iranian and international databases were searched from 2000 to 2021. We extracted the prevalence of Q fever in blood samples from animals and milk samples from animals, ticks, and humans as the main outcome. We reported the prevalence of seropositivity and molecular positivity as point estimates and 95% confidence intervals (CIs).
RESULTS
In this review, 112 papers were identified. The overall seroprevalence of Q fever was 22.4% (95% CI, 19.8 to 25.1). The pooled prevalence of Q fever in ticks was 17.5% (95% CI, -1.3 to 36.4). The prevalence was 25.5% (95% CI, 16.1 to 34.9) in humans. The prevalence of Q fever in animal blood samples from goats, sheep, camels, cattle, cats, dogs, horses, and buffalo were 28.1%, 25.1%, 25.0%, 20.1%, 9.8%, 8.4%, 6.5%, and 6.3%, respectively. Furthermore, the prevalence of Q fever in milk samples of animals was higher in cattle (20.3%) than in sheep (20.0%), goats (16.4%), and camels (3.3%).
CONCLUSIONS
Coxiella burnetii infections are common in humans and in a wide range of animal species, but they are still not recognized in many countries in the Eastern Mediterranean region, thus presenting a significant threat to human and animal health in the region.
Summary

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  • Prevalence, Risk Factors, and Relationship between Reproductive Performance and the Presence of Antibodies against Coxiellosis in Dairy Farm Milk Tanks in the Northwest of Spain
    Uxía Yáñez, Jacobo Álvarez, Cristina Pisón, Antía Acción, Juan J. Becerra, Antonio Jiménez, Philippe Gisbert, Pedro G. Herradón, Ana I. Peña, Alberto Prieto, José M. Díaz-Cao, Luis A. Quintela
    Animals.2024; 14(3): 367.     CrossRef
  • Two Cases of Acute Q Fever Diagnosed by mNGS and Literature Review
    娇 罗
    Advances in Clinical Medicine.2023; 13(07): 12005.     CrossRef
  • Zoonotic diseases transmitted from the camels
    Abdelmalik Ibrahim Khalafalla
    Frontiers in Veterinary Science.2023;[Epub]     CrossRef
  • Q fever and coxiellosis: implications for livestock and human health in the UK
    Nick Wheelhouse, Richard Vazquez, Lorenzo Viora, Jo E. B. Halliday
    Livestock.2023; 28(5): 221.     CrossRef
Original Articles
The physical activity paradox in relation to work ability and health-related productivity loss in Korea
Heejoo Ko, Dohwan Kim, Seong-Sik Cho, Mo-Yeol Kang
Epidemiol Health. 2023;45:e2023096.   Published online October 28, 2023
DOI: https://doi.org/10.4178/epih.e2023096
  • 3,191 View
  • 186 Download
AbstractAbstract PDF
Abstract
OBJECTIVES
The physical activity paradox suggests that occupational physical activity (OPA), unlike leisure-time physical activity (LTPA), may detrimentally impact health. We explored the relationships of OPA and LTPA with work ability (WA) and health-related productivity loss (HRPL).
METHODS
This study included 5,501 workers in Korea who were recruited in 2021 through a web-based cross-sectional questionnaire. The questionnaire was utilized to quantify OPA and LTPA in metabolic equivalents, while WA and HRPL were also measured. Non-parametric regression, using a generalized additive model (GAM), was employed to visualize the relationships of LTPA and OPA with WA and HRPL. Mean differences in WA and HRPL, in relation to OPA and LTPA, were examined using linear regression models. These models were adjusted for covariates including sex, age, body mass index, education level, alcohol consumption, smoking history, insomnia, occupation, hours worked, and income.
RESULTS
The GAM and linear regression analyses revealed that higher LTPA corresponded with higher WA and lower HRPL. In contrast, as OPA increased, WA decreased and HRPL increased. However, within the group with high OPA, HRPL was not significantly lower in the high-LTPA subgroup relative to the low-LTPA subgroup (mean difference=1.92%, p=0.343). This pattern was especially pronounced among workers aged 60 years and older, with an increase in HRPL observed with increasing LTPA among the respondents with high OPA.
CONCLUSIONS
High LTPA levels were associated with elevated WA and diminished HRPL. In contrast, higher levels of OPA were associated with lower WA and higher HRPL.
Summary
Association of blood pressure measurements in sitting, supine, and standing positions with the 10-year risk of mortality in Korean adults
Inkyung Baik, Nan Hee Kim, Seong Hwan Kim, Chol Shin
Epidemiol Health. 2023;45:e2023055.   Published online June 8, 2023
DOI: https://doi.org/10.4178/epih.e2023055
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This prospective cohort study investigated the association between blood pressure (BP) as measured in different body postures and all-cause and cardiovascular (CV) mortality risk.
METHODS
This population-based investigation included 8,901 Korean adults in 2001 and 2002. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured sequentially in the sitting, supine, and standing positions and classified into 4 categories: (1) normal, SBP <120 mmHg and DBP <80 mmHg; (2) high normal/prehypertension, SBP 120-129 mmHg and DBP <80 mmHg/SBP 130-139 mmHg or DBP 80-89 mmHg; (3) grade 1 hypertension (HTN), with SBP 140-159 mmHg or DBP 90-99 mmHg; and (4) grade 2 HTN, SBP ≥160 mmHg or DBP ≥100 mmHg. The date and cause of individual deaths were confirmed in the death record data compiled until 2013. Data were analyzed using Cox proportional hazard regression.
RESULTS
Significant associations were found between the BP categories and all-cause mortality, but only when BPs were measured in the supine position. The multivariate hazard ratios (95% confidence intervals, [CIs]) were 1.36 (95% CI, 1.06 to 1.75) and 1.59 (95% CI, 1.06 to 2.39) for grade 1 HTN and grade 2 HTN, respectively, compared with the normal category. The associations between the BP categories and CV mortality were significant regardless of body posture among participants ≥65 years, whereas they were significant for supine BP measurements only in those <65 years.
CONCLUSIONS
BP measured in the supine position predicted all-cause mortality and CV mortality better than BP measured in other postures.
Summary
Korean summary
본 역학 연구는 한국 성인 8,901명을 연구대상자로 하여 기초조사에서 세가지 자세, 즉 앉은 자세, 누운 자세, 일어선 자세에서 혈압을 측정하고, 이후 10년 동안의 사망 여부를 추적조사하여, 측정 자세에 따른 혈압과 사망 위험과의 관련성을 분석하였다. 그 결과, 누운 자세에서 측정된 고혈압(기준: 수축기 혈압이 140 mmHg 이상 혹은 이완기 혈압이 90 mmHg 이상)인 사람은 정상 혈압(기준: 수축기 혈압이 120 mmHg 미만이고 이완기 혈압이 80 mmHg 미만)인 사람에 비해 36%(1단계 고혈압) 혹은 59%(2단계 고혈압) 가량 총 사망 위험이 유의적으로 증가하는 것으로 나타났다. 이에 비해, 앉은 자세 및 일어선 자세에서 측정, 정의된 고혈압은 총 사망 위험을 증가시켰지만 유의적인 결과를 나타내지 못했다. 추후 연구에서 재확인이 필요하지만, 본 연구 결과가 시사하는 바는 앉은 자세나 일어선 자세보다 누운 자세에서 측정하는 혈압이 총 사망 위험을 더 잘 예측하므로, 고혈압 진단 외의 추가적인 활용 가능성이 있는 것으로 평가된다.
Key Message
The current epidemiological study revealed that blood pressure measured in a supine position could predict all-cause mortality and cardiovascular mortality better than blood pressure measured in a sitting or standing position. As a result, blood pressure measurements in a supine position may be useful in assessing mortality risk.
Data Profile
The Korea National Health and Nutrition Examination Survey data linked Cause of Death data
Sungha Yun, Kyungwon Oh
Epidemiol Health. 2022;44:e2022021.   Published online February 9, 2022
DOI: https://doi.org/10.4178/epih.e2022021
  • 12,291 View
  • 627 Download
  • 9 Web of Science
  • 7 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
The Korea National Health and Nutrition Examination Survey (KNHANES) is a national health survey that is conducted annually to assess the health and and health-related behaviors of Korean population. To utilize KNHANES data to studies of mortality risk factors, the Korea Disease Control and Prevention Agency (KDCA) constructed a database linking KNHANES data to cause-of-death statistics in Statistics Korea, made available to researchers since 2020. The KNHANES data were linked to the Cause of Death Statistics based on resident registration numbers for subjects aged 19 years or older who agreed to link the data. The linkage rate between 2007-2015 National Health and Nutrition Examination Survey and 2007-2019 Cause of Death Statistics was 97.1%. In the linked dataset, the total death rate was 6.6%, of which neoplasms accounted for the highest death rate (32.1%), followed by circulatory system disease (22.7%) and respiratory system disease (11.5%). The linked dataset was made available through the Research Data Center of the KDCA after a review of the research proposal, and will be made available after periodical updates.
Summary
Korean summary
1. 국민건강영양조사 자료가 사망 위험요인 규명 연구에 활용되도록 통계청의 사망원인통계와 연계자료 구축함 2. 2007~2015년 국민건강영양조사와 2007~2019년 사망원인통계의 연계율은 97.1%이었음 3. 국민건강영양조사-사망원인통계 연계자료는 2020년부터 연구자에게 질병관리청 내 학술연구자료처리실를 통해 제공되고 있음
Key Message
1. To utilize the Korea National Health and Nutrition Examination Survey (KNHANES) data to studies of mortality risk factors, the data were linked to the Cause of Death Statistics in the Statistics Korea. 2. The linkage rate between the 2007-2015 KNHANES and the 2007-2019 Cause of Death Statistics was 97.1%. 3. The Korea National Health and Nutrition Examination Survey data linked Cause of Death data have been provided to researchers through the Research Data Center in the Korea Disease Control and Prevention Agency (KDCA) since 2020.

Citations

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  • Computational method of the cardiovascular diseases classification based on a generalized nonlinear canonical decomposition of random sequences
    Igor Atamanyuk, Yuriy Kondratenko, Valerii Havrysh, Yuriy Volosyuk
    Scientific Reports.2023;[Epub]     CrossRef
  • The Association between Advanced Liver Fibrosis and Mortality Is Modified by Dietary Quality among Korean Adults: Results from the Korea National Health and Nutrition Examination Survey with Mortality Data
    Juhee Lee, Garam Jo, Dahyun Park, Hee Ju Jun, Jae Hyun Bae, Min-Jeong Shin
    Nutrients.2023; 15(6): 1501.     CrossRef
  • Association of dietary sodium intake with impaired fasting glucose in adult cancer survivors: A population-based cross-sectional study
    Kyuwoong Kim, Hamee Kim, Tae Joon Jun, Young-Hak Kim, Dong Keon Yon
    PLOS ONE.2023; 18(5): e0286346.     CrossRef
  • Fibrosis-4 Index Predicts Long-Term All-Cause, Cardiovascular and Liver-Related Mortality in the Adult Korean Population
    Young-Gyun Seo, Stergios A. Polyzos, Kyung-Hee Park, Christos S. Mantzoros
    Clinical Gastroenterology and Hepatology.2023; 21(13): 3322.     CrossRef
  • The serotype-specific prevalence of pneumococci in hospitalized pneumonia patients with COPD: a prospective, multi-center, cohort study
    Jae Yeol Kim, Jae-Woo Jung, Min-Jong Kang, Deog Kyeom Kim, Hayoung Choi, Young-Jae Cho, Seung Hun Jang, Chang-Hoon Lee, Yeon Mok Oh, Ji Sook Park
    The Korean Journal of Internal Medicine.2023; 38(5): 714.     CrossRef
  • The Korea Cohort Consortium: The Future of Pooling Cohort Studies
    Sangjun Lee, Kwang-Pil Ko, Jung Eun Lee, Inah Kim, Sun Ha Jee, Aesun Shin, Sun-Seog Kweon, Min-Ho Shin, Sangmin Park, Seungho Ryu, Sun Young Yang, Seung Ho Choi, Jeongseon Kim, Sang-Wook Yi, Daehee Kang, Keun-Young Yoo, Sue K. Park
    Journal of Preventive Medicine and Public Health.2022; 55(5): 464.     CrossRef
  • Self-perceived Weight and Mortality in Korean Adults Based on the Korea National Health and Nutrition Examination Survey Data Linked to Cause of Death Statistics
    Kayoung Lee
    Journal of Obesity & Metabolic Syndrome.2022; 31(4): 313.     CrossRef
COVID-19: Original Article
Korea Seroprevalence Study of Monitoring of SARS-COV-2 Antibody Retention and Transmission (K-SEROSMART): findings from national representative sample
Jina Han, Hye Jin Baek, Eunbi Noh, Kyuhyun Yoon, Jung Ae Kim, Sukhyun Ryu, Kay O Lee, No Yai Park, Eunok Jung, Sangil Kim, Hyukmin Lee, Yoo-Sung Hwang, Jaehun Jung, Hun Jae Lee, Sung-il Cho, Sangcheol Oh, Migyeong Kim, Chang-Mo Oh, Byengchul Yu, Young-Seoub Hong, Keonyeop Kim, Sun Jae Jung, Mi Ah Han, Moo-Sik Lee, Jung-Jeung Lee, Young Hwangbo, Hyeon Woo Yim, Yu-Mi Kim, Joongyub Lee, Weon-Young Lee, Jae-Hyun Park, Sungsoo Oh, Heui Sug Jo, Hyeongsu Kim, Gilwon Kang, Hae-Sung Nam, Ju-Hyung Lee, Gyung-Jae Oh, Min-Ho Shin, Soyeon Ryu, Tae-Yoon Hwang, Soon-Woo Park, Sang Kyu Kim, Roma Seol, Ki-Soo Park, Su Young Kim, Jun-wook Kwon, Sung Soon Kim, Byoungguk Kim, June-Woo Lee, Eun Young Jang, Ah-Ra Kim, Jeonghyun Nam, The Korea Community Health Survey Group, Soon Young Lee, Dong-Hyun Kim
Epidemiol Health. 2023;45:e2023075.   Published online August 17, 2023
DOI: https://doi.org/10.4178/epih.e2023075
  • 3,271 View
  • 172 Download
  • 1 Web of Science
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We estimated the population prevalence of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including unreported infections, through a Korea Seroprevalence Study of Monitoring of SARS-CoV-2 Antibody Retention and Transmission (K-SEROSMART) in 258 communities throughout Korea.
METHODS
In August 2022, a survey was conducted among 10,000 household members aged 5 years and older, in households selected through two stage probability random sampling. During face-to-face household interviews, participants self-reported their health status, COVID-19 diagnosis and vaccination history, and general characteristics. Subsequently, participants visited a community health center or medical clinic for blood sampling. Blood samples were analyzed for the presence of antibodies to spike proteins (anti-S) and antibodies to nucleocapsid proteins (anti-N) SARS-CoV-2 proteins using an electrochemiluminescence immunoassay. To estimate the population prevalence, the PROC SURVEYMEANS statistical procedure was employed, with weighting to reflect demographic data from July 2022.
RESULTS
In total, 9,945 individuals from 5,041 households were surveyed across 258 communities, representing all basic local governments in Korea. The overall population-adjusted prevalence rates of anti-S and anti-N were 97.6% and 57.1%, respectively. Since the Korea Disease Control and Prevention Agency has reported a cumulative incidence of confirmed cases of 37.8% through July 31, 2022, the proportion of unreported infections among all COVID-19 infection was suggested to be 33.9%.
CONCLUSIONS
The K-SEROSMART represents the first nationwide, community-based seroepidemiologic survey of COVID-19, confirming that most individuals possess antibodies to SARS-CoV-2 and that a significant number of unreported cases existed. Furthermore, this study lays the foundation for a surveillance system to continuously monitor transmission at the community level and the response to COVID-19.
Summary
Korean summary
인구집단을 기반으로 하여 대표성 있는 표본을 추출하여 COVID-19 항체유병률 조사를 전국적으로 수행함으로 지역사회 단위에서 지속적으로 모니터링할 수 있는 COVID-19 감시체계 구축의 기반을 마련하였다. 2022년 8월 우리나라 국민의 대부분이 COVID-19에 대한 항체를 보유하고 있었고 인구 3명 중 1명은 미확진 감염자로 추정되었다.
Key Message
The K-SEROSMART represents the first nationwide, community-based seroepidemiologic survey of COVID-19. In August 2022, most of the Korean people had antibodies to COVID-19, and one in three people was estimated to have an unreported infection. This study lays the foundation for a surveillance system to continuously monitor transmission at the community level and the response to COVID-19.
Original Article
Decomposition of socioeconomic inequalities in glaucoma knowledge in Taiwan
Chiun-Ho Hou, Christy Pu
Epidemiol Health. 2024;46:e2024004.   Published online December 5, 2023
DOI: https://doi.org/10.4178/epih.e2024004
  • 1,681 View
  • 60 Download
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Glaucoma knowledge is strongly associated with medication adherence and preventive behavior. Studies have frequently reported socioeconomic inequalities in glaucoma knowledge. This study aimed to decompose such inequalities. Decomposition analysis enables the design of policies directly targeting the underlying causes of inequality.
METHODS
We performed a cross-sectional survey from January 1, 2019 to June 30, 2019, at the departments of ophthalmology of 2 medical centers belonging to a hospital chain in northern Taiwan. Socioeconomic inequalities in glaucoma knowledge were ranked based on 3 aspects of socioeconomic status (SES): (1) education, (2) income, and (3) self-perceived financial status. The concentration index was calculated and decomposed using decomposition analysis. Elasticity and marginal effects were estimated for each decomposed factor.
RESULTS
In total, 1,203 patients completed the survey. Both measures of glaucoma knowledge and overall glaucoma knowledge score significantly contributed to the progressivity of knowledge inequalities (pro-high-SES inequalities). The concentration index for overall knowledge score with respect to education was 0.166 (p<0.001). Both objective and subjective measures of SES were associated with pro-high-SES inequalities. Our decomposition analysis revealed that demographic factors and attitudinal factors such as the level of concern regarding developing glaucoma contributed significantly to SES-based inequalities in glaucoma knowledge.
CONCLUSIONS
Our decomposition analysis provided empirical evidence regarding the underlying causes of SES-based inequalities in glaucoma knowledge. Efforts to improve glaucoma knowledge should consider specific factors that drive SES-based inequalities, such as age, sex, and concern about vision health, to ultimately achieve low SES-based inequalities.
Summary
Key Message
This study investigates the relationship between glaucoma knowledge and socioeconomic status (SES) inequalities, and the underlying causes of these disparities. The study concludes that understanding the drivers of SES-based inequalities in glaucoma knowledge, like age, gender, and concerns about vision health, is crucial. This understanding can guide efforts to improve glaucoma awareness and address SES-based disparities in knowledge, aiming to reduce these inequalities.

Epidemiol Health : Epidemiology and Health