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Physical activity and the risk of SARS-CoV-2 infection, severe COVID-19 illness, and COVID-19-related mortality in South Korea: a nationwide cohort study

journal contribution
posted on 2023-08-30, 18:40 authored by Seung Won Lee, Jinhee Lee, Sung Yong Moon, Hyun Young Jin, Jee Myung Yang, Shuji Ogino, Mingyang Song, Sung Hwi Hong, Ramy A. Ghayda, Andreas Kronbichler, Ai Koyanagi, Louis Jacob, Elena Dragioti, Lee Smith, Edward L. Giovannucci, I-Min Lee, Dong Hoon Lee, Keum Hwa Lee, Youn Ho Shin, So Young Kim, Min Seo Kim, Hong-Hee Won, Ulf Ekelund, Jae Il Shin, Dong Keon Yon
Purpose- To determine the potential associations between physical activity and risk of SARS-CoV-2 infection, severe illness from COVID-19 and COVID-19 related death using a nationwide cohort from South Korea. Methods- Data regarding 212 768 Korean adults (age ≥20 years), who tested for SARS-CoV-2, from 1 January 2020 to 30 May 2020, were obtained from the National Health Insurance Service of South Korea and further linked with the national general health examination from 1 January 2018 to 31 December 2019 to assess physical activity levels. SARS-CoV-2 positivity, severe COVID-19 illness and COVID-19 related death were the main outcomes. The observation period was between 1 January 2020 and 31 July 2020. Results- Out of 76 395 participants who completed the general health examination and were tested for SARS-CoV-2, 2295 (3.0%) were positive for SARS-CoV-2, 446 (0.58%) had severe illness from COVID-19 and 45 (0.059%) died from COVID-19. Adults who engaged in both aerobic and muscle strengthening activities according to the 2018 physical activity guidelines had a lower risk of SARS-CoV-2 infection (2.6% vs 3.1%; adjusted relative risk (aRR), 0.85; 95% CI 0.72 to 0.96), severe COVID-19 illness (0.35% vs 0.66%; aRR 0.42; 95% CI 0.19 to 0.91) and COVID-19 related death (0.02% vs 0.08%; aRR 0.24; 95% CI 0.05 to 0.99) than those who engaged in insufficient aerobic and muscle strengthening activities. Furthermore, the recommended range of metabolic equivalent task (MET; 500–1000 MET min/week) was associated with the maximum beneficial effect size for reduced risk of SARS-CoV-2 infection (aRR 0.78; 95% CI 0.66 to 0.92), severe COVID-19 illness (aRR 0.62; 95% CI 0.43 to 0.90) and COVID-19 related death (aRR 0.17; 95% CI 0.07 to 0.98). Similar patterns of association were observed in different sensitivity analyses. Conclusion- Adults who engaged in the recommended levels of physical activity were associated with a decreased likelihood of SARS-CoV-2 infection, severe COVID-19 illness and COVID-19 related death. Our findings suggest that engaging in physical activity has substantial public health value and demonstrates potential benefits to combat COVID-19.

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  • Yes

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Publication title

British Journal of Sports Medicine

ISSN

1473-0480

Publisher

BMJ

File version

  • Accepted version

Language

  • eng

Legacy posted date

2021-07-01

Legacy creation date

2021-07-01

Legacy Faculty/School/Department

COVID-19 Research Collection

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