British Journal of Anaesthesia, Vol 84, Issue 2 266-269, Copyright © 2000 by Oxford University Press
A Fassoulaki, A Paraskeva, K Papilas and G Karabinis
Self-citation of a journal may affect its impact factor. We investigated
self-citations in the 1995 and 1996 issues of six anaesthesia journals by
calculating the self-citing and self-cited rates for each journal.
Self-citing rate relates a journal's self- citations to its total number of
references. We defined self-cited rate as the ratio of a journal's
self-citations to the number of times it is cited by the six anaesthesia
journals. We also correlated self-citing rates with the impact factor of
the six journals for 1997. Citations among the six journals differed
significantly (P < 0.0001). Anesthesiology had the highest self-citing
rate (57%). Anaesthesia, Anesthesia and Analgesia, British Journal of
Anaesthesia, Canadian Journal of Anaesthesia and the European Journal of
Anaesthesiology had self-citing rates of 28%, 28%, 30%, 11% and 4%
respectively. The self- cited rates were 31%, 35%, 34%, 27%, 31% and 17%
for Anaesthesia, Anesthesiology, Anesthesia and Analgesia, British Journal
of Anaesthesia, Canadian Journal of Anaesthesia and the European Journal of
Anaesthesiology, respectively. North America journals cited the North
America literature. This also occurred, to a lesser extent, in the European
anaesthesia journals. A significant correlation between self-citing rates
and impact factors was found (r = 0.899, P = 0.015). A high self-citing
rate of a journal may positively affect its impact factor.
ARTICLES
Self-citations in six anaesthesia journals and their significance in determining the impact factor
Department of Anaesthesia, St Savas Hospital, Athens, Greece.
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