Medical Informatics Journals: 2010 Impact Factors
The latest (2010) Impact Factor reports for journals, including those in the Medical Informatics category, have recently been released (June 2011 by Thomson Reuters Journal Citation Reports). The top two journals remain Journal of Internet Medical Research (JMIR – www.jmir.org) and Journal of the American Medical Informatics Association (JAMIA – http://jamia.bmj.com), although they again changed places, so that this year JMIR returns to the number 1 position.
The 2010 Impact Factor (IF) for JMIR is 4.663 (up from 3.924 in 2009), while JAMIA’s 2010 rating is 3.078 (down from 3.974 in 2009). The 5-year Impact Factor figures are 4.981 for JMIR and 3.930 for JAMIA. Other leading journals in field, including those that are official IMIA journals, have not fared well; International Journal of Medical Informatics (IJMI) falls to 5th position (2010 IF = 2.244) from 3rd position last year (2009 IF = 3.126); Methods of Information in Medicine falls one place to 13th (2010 IF = 1.472) from 12th last year (2009 IF = 1.690). Among other well-known publications, Journal of Biomedical Informatics (JBI) also falls to 10th in 2010 (IF = 1.719) from 6th in 2009 (IF = 2.432).
Dr Gunther Eysenbach, Founding Editor and Publisher of JMIR, has written a blog post about various aspects of the most recent results, and provides an interesting graphical representation of the changes. However, this perhaps raises as many questions as it answers, and it would be interesting to know if anyone has any comments on the issue. Has the method for calculating Impact Factor undergone any major change in the past year? Or are we seeing a real change with journals published under open access models generally increasing their IF, while those produced by traditional publishers losing out. It may only be one year’s data, but the change is striking.
Image from “Gunther Eysenbach’s Random Research Rants” (http://gunther-eysenbach.blogspot.com)
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