ArticleBMC public health2021
Socioeconomic disparity and the risk of contracting COVID-19 in South Korea: an NHIS-COVID-19 database cohort study.
Article in BMC public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.
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27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 104 citations in OpenAlex.
- Risk factors for SARS-CoV-2 infection during the early stages of the COVID-19 pandemic: a systematic literature review.Frontiers in public health · 2023Pooled it
- Risk of COVID-19 infection and severe disease in MS patients on different disease-modifying therapies.Multiple sclerosis and related disorders · 2022Pooled it
- The intersection of health inequalities and COVID-19: Evidence from National Health Insurance Big Data in South Korea.American journal of community psychology · 2026Article
- Social inequalities in SARS-CoV-2 infection in high income countries: highlighting the need for an intersectional perspective in quantitative research.Frontiers in public health · 2025Review
- Thinking politically about intersectoral action: Ideas, Interests and Institutions shaping political dimensions of governing during COVID-19.Health policy and planning · 2024Article
- The Clinical Severity of COVID-19 Variants of Concern: Retrospective Population-Based Analysis.JMIR public health and surveillance · 2024Article
- Acute and long COVID-19 symptoms and associated factors in the omicron-dominant period: a nationwide survey via the online platform Wenjuanxing in China.BMC public health · 2024Article
- Article
- The road to recovery: impact of COVID-19 on healthcare utilization in South Korea in 2016-2022 using an interrupted time-series analysis.The Lancet regional health. Western Pacific · 2023Article
- The Risk Factors of COVID-19 Infection and Mortality among Older Adults in South Korea.Annals of geriatric medicine and research · 2023Article
- Communication inequalities in the COVID-19 pandemic: socioeconomic differences and preventive behaviors in the United States and South Korea.BMC public health · 2023Article
- [Factors influencing handwashing among community dwelling older adults, using the 2021 Community Health Survey: A secondary analysis study].Journal of Korean gerontological nursing · 2023Article
- The impact of the COVID-19 pandemic on life expectancy by the level of area deprivation in South Korea.Frontiers in public health · 2023Article
- Unequal burdens of COVID-19 infection: a nationwide cohort study of COVID-19-related health inequalities in Korea.Epidemiology and health · 2023Article
- Prevalence and risk factors of Severe Acute Respiratory Syndrome Coronavirus 2 infection in women and children in peri-urban communities in Pakistan: A prospective cohort study.Journal of global health · 2022Article
- Effect of the COVID-19 pandemic on the socioeconomic composition of emergency department presentations.Canadian journal of public health = Revue canadienne de sante publique · 2022Article
- Article
- Educational status and COVID-19 related outcomes in India: hospital-based cross-sectional study.BMJ open · 2022Article
- Short and Long-term Impacts of COVID-19 Pandemic on Health Equity: A Comprehensive Review.Medical journal of the Islamic Republic of Iran · 2022Review
- Socioeconomic Inequalities in COVID-19 Incidence During Different Epidemic Phases in South Korea.Frontiers in medicine · 2022Article
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3 authors at 2 institutions in 1 country.
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Abstract
backgroundThe relationship between socioeconomic status and the risk of contracting coronavirus disease (COVID-19) remains controversial. We aimed to investigate whether socioeconomic status affected the risk of contracting COVID-19 in the South Korean population.
methodsThe NHIS-COVID-19 database cohort was used in this population-based study. We collected the data of COVID-19 patients who were diagnosed between January 1, 2020 and June 4, 2020 and those of the control population. The income levels of all individuals as of February 2020 were extracted, and study participants were classified into four groups based on quartiles: Q1 (the lowest) to Q4 (the highest). Data were statistically analyzed using multivariable logistic regression modeling.
resultsIn total, 122,040 individuals-7669 and 114,371 individuals in the COVID-19 and control groups, respectively-were included in the final analysis. The multivariable logistic regression model showed that the Q1 group had a 1.19-fold higher risk of contracting COVID-19 than the Q4 group, whereas the Q2 and Q3 groups showed no significant differences. In the 20-39 years age group, compared with the Q4 group, the Q3 and Q2 groups showed 11 and 22% lower risks of contracting COVID-19, respectively. In the ≥60 years age group, compared with the Q4 group, the Q1, Q2, and Q3 groups showed a 1.39-, 1.29-, and 1.14-fold higher risks of COVID-19, respectively.
conclusionsLower socioeconomic status was associated with a higher risk of contracting COVID-19 in South Korea. This association was more evident in the older population (age ≥ 60 years), whereas both lower and higher socioeconomic statuses were associated with higher risks of contracting COVID-19 in the young adult population (in the 20-39 year age group). Strategies for the prevention of COVID-19 should focus on individuals of lower socioeconomic status and on young adults of higher and lower socioeconomic status.
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