Research Notes

Covid-related Papers Contribute 50% on the JIF of High Impact Medicine Journals

  • Jiandong Zhang 1, 2 ,
  • Yahui Liu 1, 2 ,
  • Zhesi Shen , 1,
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  • 1National Science Library, Chinese Academy of Sciences, 100190, Beijing, China
  • 2Department of Library, Information and Archives Management, School of Economics and Management, University of Chinese Academy of Sciences, 100190, Beijing, China
†Zhesi Shen (Email: ).

Received date: 2022-09-20

  Revised date: 2022-09-21

  Accepted date: 2022-09-21

  Online published: 2022-09-23

Cite this article

Jiandong Zhang , Yahui Liu , Zhesi Shen . Covid-related Papers Contribute 50% on the JIF of High Impact Medicine Journals[J]. Journal of Data and Information Science, 2022 , 7(4) : 1 -2 . DOI: 10.2478/jdis-2022-0020

On June 28, 2022, Journal Citation Reports 2021 was released, which is also the first time that Covid19-related publications have been included in the calculation of Journal Impact Factor (JIF). Journals in medical fields like infectious diseases, critical care, public health have significant increase in JIF. Here, by excluding the citations from and to Covid19-related papers, we identified the top 10 medical journals having the largest contribution of Covid-related papers on JIF as shown in Table 1. Prestigious medical journals are included in these identified journals. Averagely, Covid-related papers contribution rate is about 50% on the JIF of these 10 journals (with 7 journals having more than 50%). For example, Covid-related papers contribute 108.5 to the JIF of Lancet and boost it over 200 for the first time. The Covid-19 is a huge challenge to our life and scientific research, and it also raises an unprecedented challenge to our scientific research evaluation system, especially to the quantitative evaluation system, e.g., how to deal with the dominance of Covid-related papers in highly-cited papers, the new citation elites due to publications of Covid-related papers, the ranking boost of scientific journals and institutions.
Table 1. Top 10 journals having the largest contribution of Covid-related papers1 to JIF.
Index Journal JIF2021 JIF2021 w/o
Covid2
Contribution of Covid3 Percentage4
1 Lancet 202.7 94.2 108.5 53.5%
2 JAMA J AM MED ASSOC 157.3 63.8 93.6 59.5%
3 NEW ENGL J MED 176.1 96.2 79.9 45.4%
4 LANCET RESP MED 102.6 40.7 62.0 60.4%
5 LANCET INFECT DIS 71.4 23.8 47.6 66.7%
6 BMJ BRIT MED J 93.3 47.5 45.9 49.2%
7 LANCET PSYCHIAT 77.1 33.1 44.0 57.1%
8 LANCET PUBLIC HEALTH 72.4 30.6 41.8 57.7%
9 NAT REV IMMUNOL 108.6 68.2 40.4 37.2%
10 J INFECTION 38.6 8.8 29.8 77.2%

1Covid-related papers are identified as papers with 'covid', 'sars-cov', 'coronavirus', and 'ncov' in title.

2JIF2021 w/o Covid=$\frac{\text { Total } \text { Citations }-\text { Citations from/to } \text { covid }-\text { related papers }}{\text { Citableltem }-\text { covid }-\text { related }-\text { CitableItem }}$

3Contribution of Covid =JIF 2021-JIF 2021 w/o Covid

4Percentage =$\frac{\text { Contribution of Covid }}{J I F 2021}$

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