SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Osteoarthritis and Cartilage is the official journal of the Osteoarthritis Research Society International.
It is an international, multidisciplinary journal that disseminates information for the many kinds of specialists and practitioners concerned with osteoarthritis.
The Journal fosters the cross-fertilization of findings from both the clinical and basic sciences of the various disciplines involved, including:
• Molecular biology
• Clinical pharmacology
• Physical medicine