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Analysis of Risk Factors on Readmission Cases of COVID-19 in the Republic of Korea: Using Nationwide Health Claims Data

Author

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  • Woo-Hwi Jeon

    (Department of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul 02447, Korea)

  • Jeong Yeon Seon

    (Department of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul 02447, Korea)

  • So-Youn Park

    (Department of Medical Education and Humanities, School of Medicine, Kyung Hee University, Seoul 02447, Korea)

  • In-Hwan Oh

    (Department of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul 02447, Korea)

Abstract

In South Korea, 4.5% patients of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were readmitted to hospitals after discharge. However, there is insufficient research on risk factors for readmission and management of patients after discharge is poor. In this study, 7590 confirmed coronavirus disease (COVID-19) patients were defined as a target for analysis using nationwide medical claims data. The demographic characteristics, underlying diseases, and the use of medical resources were used to examine the association with readmission through the chi-square test and then logistic regression analysis was performed to analyze factors affecting readmission. Of the 7590 subjects analyzed, 328 patients were readmitted. The readmission rates of men, older age and patients with medical benefits showed a high risk of readmission. The Charlson Comorbidity Index score was also related to COVID-19 readmission. Concerning requiring medical attention, there was a higher risk of readmission for the patients with chest radiographs, computed tomography scans taken and lopinavir/ritonavir at the time of their first admission. Considering the risk factors presented in this study, classifying patients with a high risk of readmission and managing patients before and after discharge based on priority can make patient management and medical resource utilization more efficient. This study also indicates the importance of lifestyle management after discharge.

Suggested Citation

  • Woo-Hwi Jeon & Jeong Yeon Seon & So-Youn Park & In-Hwan Oh, 2020. "Analysis of Risk Factors on Readmission Cases of COVID-19 in the Republic of Korea: Using Nationwide Health Claims Data," IJERPH, MDPI, vol. 17(16), pages 1-11, August.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:16:p:5844-:d:398210
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    References listed on IDEAS

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    1. Alfred K. Mukong & Corné van Walbeek & Hana Ross, "undated". "Lifestyle and Income-related Inequality in Health in South Africa," Working Papers 677, Economic Research Southern Africa.
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