J Korean Med Sci.  2022 Oct;37(40):e296. 10.3346/jkms.2022.37.e296.

Impact of COVID-19 Pandemic on Biomedical Publications and Their Citation Frequency

• Park S
• Lim HJ
• Park J
• Choe YH

• KMID: 2534335
• DOI: http://doi.org/10.3346/jkms.2022.37.e296

Abstract

Background
The coronavirus disease 2019 (COVID-19) pandemic has resulted in enormous related publications. However, the citation frequency of these documents and their influence on the journal impact factor (JIF) are not well examined. We aimed to evaluate the impact of COVID-19 on biomedical research publications and their citation frequency.
Methods
We searched publications on biomedical research in the Web of Science using the search terms “COVID-19,” “SARS-Cov-2,” “2019 corona*,” “corona virus disease 2019,” “coronavirus disease 2019,” “novel coronavirus infection” and “2019-ncov.” The top 200 journals were defined as those with a higher number of COVID-19 publications than other journals in 2020. The COVID-19 impact ratio was calculated as the ratio of the average number of citations per item in 2021 to the JIF for 2020.
Results
The average number of citations for the top 200 journals in 2021, per item published in 2020, was 25.7 (range, 0–270). The average COVID-19 impact ratio was 3.84 (range, 0.26–16.58) for 197 journals that recorded the JIF for 2020. The average JIF ratio for the top 197 journals including the JIFs for 2020 and 2021 was 1.77 (range, 0.68–8.89). The COVID-19 impact ratio significantly correlated with the JIF ratio (r = 0.403, P = 0.010). Twenty-five Korean journals with a COVID-19 impact ratio > 1.5 demonstrated a higher JIF ratio (1.31 ± 0.39 vs. 1.01 ± 0.18, P < 0.001) than 33 Korean journals with a lower COVID-19 impact ratio.
Conclusion
COVID-19 pandemic infection has significantly impacted the trends in biomedical research and the citation of related publications.

Keyword

COVID-19; Journal; Publication; Impact Factor; Citation; Research

Figure

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  Fig. 1 Correlation between journal impact ratio and COVID-19 impact ratio. The COVID-19 impact ratio significantly correlated with the JIF ratio (r = 0.403, P = 0.010).COVID-19 = coronavirus disease 2019, JIF = journal impact factor, JCR = Journal Citation Report.

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