Miguel A, Marti-Bonmati L " Self-citation: comparison between Radiologia, European Radiology and Radiology for 1997-1998" EUROPEAN RADIOLOGY 12 (1): 248-252 JAN 2002

[Eugene Garfield]

E-mail: L. Marti-Bonmati : marti_lui at gva.es

TITLE     Self-citation: comparison between Radiologia, European Radiology
          and Radiology for 1997-1998
AUTHORS   Miguel A, Marti-Bonmati L
JOURNAL   EUROPEAN RADIOLOGY 12 (1): 248-252 JAN 2002

 Document type: Article   Language: English
Cited References: 19


Abstract. Self-citation, considered as the number of times a paper cites
other papers in the same journal, is an important criteria of journal
quality. Our objective is to evaluate the self-citation in the official
journal of the Spanish Society of Radiology (Radiología), and to compare it
with the European Radiology and Radiology journals. Papers published in
Radiología, European Radiology, and Radiology during 1997 and 1998 were
analyzed. The Self Citation Index, considered as the ratio between
self-references and total number of references per article, for the journals
Radiología (SCIR), European Radiology (SCIER), and Radiology (SCIRY),
were obtained and expressed as percentages. Also, the number of references
to Radiología in European Radiology and Radiology papers were calculated.
Stratification of the index per thematic area and article type was also
performed. Mean SCIR, SCIER,and SCIRY values were compared with the ANOVA
and the Student-Newman-Keuls tests. The self-citation index was
Statistically higher in Radiology (23.2%; p<0.0001) than in Radiología
(1.8%) and European Radiology (0.8%). There were no statistically
significant differences between SCIR and SCIER indexes (p=0.25). In the
stratification per thematic areas and article type, self-citation in
Radiology was statistically higher (p<0.0001), with the only exception of
"Radioprotection" area (p=0.2), to SCIR and SCIER. Although there were no
statistically significant differences, by thematic areas SCIR was always
larger than SCIER, with the only exception of the "Genitourinary imaging"
area, and by  article type SCIR also went greater to SCIER, except
in review articles. Radiología, The Spanish official radiological
journal, although not included in Index Medicus and its database
Medline, had a larger number of self-citing than European
Radiology in the period 1997-1998.

Keywords. Database Medline - Impact factor - Journals -
Self-citation
Times Cited: 0

Author Keywords:
database Medline, impact factor, journals, self-citation

KeyWords Plus:
IMPACT FACTOR, JOURNALS

Addresses:
Marti-Bonmati L, Doctor Peset Univ Hosp, Dept Radiol, Avenida Gaspar Aguilar
90, Valencia
46017, Spain
Doctor Peset Univ Hosp, Dept Radiol, Valencia 46017, Spain

Publisher:
SPRINGER-VERLAG, NEW YORK

IDS Number:
521LE

ISSN:
0938-7994

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