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Background:
The impact factor (IF), as the most important criterion for journals quality measurement, is affected by the self-citation and number of publications in each journal.
Hepatitis Monthly
Official Journal of Research Center for Gastroenterology and Liver Diseases
The More Publication, the Higher Impact Factor: Citation Analysis of Top Nine Gastroenterology and Hepatology Journals
Author(s):
2Baqiyatallah Research Center for Gastroenterology and Research Center, IR Iran
1Kowsar Corporation, [email protected], The Netherlands
*Corresponding Author: Kowsar Corporation, [email protected], The Netherlands. Tel: +98-2181262072. Fax: +98-2181262072. Email: [email protected]
Published online:Dec 30, 2012
Article type:Research Article
Received:Jul 30, 2012
Accepted:Oct 08, 2012
How to Cite:Karimi Elizee P, Karimzadeh Ghassab R, Raoofi A, Miri SM. The More Publication, the Higher Impact Factor: Citation Analysis of Top Nine Gastroenterology and Hepatology Journals. Hepat Mon. 2012;12(12):8467. doi: https://doi.org/10.5812/hepatmon.8467
Abstract
Objectives:
To find out the relationship between the number of publications and self-citations in a journal, and their correlations with IF.
Materials and Methods:
Self-citations and impact factors of nine top gastroenterology and hepatology journals were assessed during the seven recent years (2005-2011) through Journal Citation Reports (JCR, ISI Thomson Reuters).
Results:
Although impact factors of all journals increased during the study, five out of nine journals increased the number of publications from 2005 to 2011. There was an increase in self-citation only in the journal of HEPATOLOGY (499 in 2005 vs. 707 in 2011). Impact factors of journals (6.5 3.5) were positively correlated with total number of publications (248.6 91.7) (R: 0.688, P < 0.001). Besides, the self-citation rate (238.73 195.317) was highly correlated with total number of publications in each journal (248.6 91.7) (R: 0.861, P < 0.001). On the other hand, impact factor without self-citation (6.08 3.3) had a correlation (R: 0.672, P < 0.001) with the number of published items (248.6 91.7).
Conclusions:
The number of articles and self-citation have definite effects on IF of a journal and because IF is the most prominent criterion for journals quality measurement, it would be a good idea to consider factors affecting on IF such as self-citation.
Copyright
© 2012, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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