Impact factor and the Cochrane Oral Health Group

800px-Ripple_effect_on_water

The ripple effect…. Photo by Sergiu Bacioiu under Creative Commons licence

The impact factors of the Cochrane Database of Systematic Reviews and the Cochrane Oral Health Group have been published in the last month.

The impact factor is a tool for ranking, evaluating, and comparing journals. It is a measure of the frequency with which the “average article” in a journal has been cited in a particular year. It is calculated by looking at the number of citations as a proportion of articles in the journal published in the previous two years and is a measure of the importance of a journal or journal article to research.

The Cochrane Database of Systematic Review’s impact factor for 2014 is 6.032, an increase on the previous year’s figure of 5.939. This means that CDSR is ranked 13th out of 153 in the Medicine, General & Internal category of journals.

The Cochrane Oral Health Group’s impact factor for 2014 is 3.787, meaning that their 47 publications were cited a total of 178 times. Although this is not an “official” impact factor as published by the Journal Citation Reports service, it compares favourably with other dental journals.

The top five journals in dentistry in terms of impact factor for 2014 are:

Journal Impact Factor
1. Journal of Dental Research 4.139
2. Journal of Clinical Periodontology 4.010
3. Clinical Oral Implants Research 3.889
4. Dental Materials 3.769
5. Periodontology 2000 3.632

This would rank the Cochrane Oral Health Group as at par with the 4th journal in the category Dentistry, Surgery and Oral Medicine (source: Impact Factor Listing for journals on Dentistry, Oral Surgery & Medicine).