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National trends in rheumatoid arthritis and osteoarthritis prevalence in South Korea, 1998-2021

 Jaeyu Park  ;  Myeongcheol Lee  ;  Hojae Lee  ;  Hyeon Jin Kim  ;  Rosie Kwon  ;  Hwi Yang  ;  Seung Won Lee  ;  Sunyoung Kim  ;  Masoud Rahmati  ;  Ai Koyanagi  ;  Lee Smith  ;  Min Seo Kim  ;  Louis Jacob  ;  Guillermo Felipe López Sánchez  ;  Dragioti Elena  ;  Jae Il Shin  ;  Sang Youl Rhee  ;  Myung Chul Yoo  ;  Dong Keon Yon 
 SCIENTIFIC REPORTS, Vol.13(1) : 19528, 2023-11 
Journal Title
Issue Date
Adult ; Arthritis, Rheumatoid* / epidemiology ; COVID-19* / epidemiology ; Humans ; Nutrition Surveys ; Osteoarthritis* / epidemiology ; Pandemics ; Prevalence ; Republic of Korea / epidemiology
Studies on the trends in the prevalence of rheumatoid arthritis (RA) and osteoarthritis (OA) are limited, particularly during the COVID-19 pandemic. This study aimed to analyze the temporal trend of RA and OA in South Korean adults from 1998 to 2021, including the COVID-19 pandemic period. The Korea National Health and Nutrition Examination Survey (KNHANES) data on adults aged ≥ 19 years were analyzed to investigate the prevalence of RA and OA from 1998 to 2021. The prevalence trends were compared by the years, and βdiff (β difference) was calculated. Odds ratios (ORs) were computed for each disease to examine changes in disease prevalence before and during the pandemic in order to determine the impact of the pandemic on disease prevalence. Among 163,221 Korean adults, the prevalence of RA and OA showed a steady decrease from 2005 (RA: from 1.91% in 2005–2007 to 1.55% in 2016–2019 and OA: from 9.75% in 2005–2007 to 8.27% in 2016–2019), but there was a slight increased after the onset of the COVID-19 pandemic (RA: from 1.23% in 2020 to 1.36% in 2021 and OA: from 8.04% in 2020 to 8.27% in 2021). Vulnerable groups, including participants aged ≥ 60 years (versus 19–60 years, ratio of ORs: 1.222; 95% CI 1.011–1.477), urban residents (ratio of ORs: 1.289; 95% CI 1.007–1.650), and participants with higher education level (ratio of ORs: 1.360; 95% CI 1.119–1.653) showed higher ORs of OA, whereas no particularly vulnerable population was observed for RA. Our findings provide an insight into the long-term trends of RA and OA among adult population and highlight a novel perspective on the impact of COVID-19 on disease prevalence. © 2023, The Author(s).
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1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Shin, Jae Il(신재일) ORCID logo https://orcid.org/0000-0003-2326-1820
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