Cochrane Oral Health is delighted to announce its unofficial individualised group impact factor (IF) for 2015. The annual IF is an international measure of the impact research journals have in their respective field, and is the ratio of citations in a single year to total number of citable publications from each journal in the preceding 2 years (e.g. citations in 2015 resulting from publications in 2013 and 2014).
When Thomson Reuters analyse journals' impact each year, all Cochrane Review Groups (CRG) publications are assessed singularly under the Cochrane Database of Systematic Reviews (CDSR) within the Medicine, General & Internal category. The 2015 Impact Factor for the CDSR (overall for all Cochrane groups) is 6.103 (1,888 publications cited 11,522 times), consequently, the CDSR now ranks 12th of the 151 journals in the Medicine, General & Internal category.
This information is useful for our publishers, Wiley, but gives little indication of how each CRG's research output fares alongside competing journals for their discipline. Consequently, we latterly receive an unofficial individualised IF each year.
Cochrane Oral Health's unofficial individualised impact factor for 2015 is 4.900 (50 publications cited 245 times), and ranks our research on a par with the 2nd placed journal in the listed 89 journals in the Dentistry, Oral Surgery and Medicine category. This means that research published by our editorial base in 2013 and 2014 was cited, on average, 4.900 times in 2015.
For comparison against the 89 journals included in Thomson Reuters' Dentistry, Oral Surgery & Medicine category, Cochrane Oral Health's research is now very slightly beneath the first ranked journal, Periodontology 2000 (IF 2015: 4.949)
We warmly congratulate our author teams on this achievement.