[National and international impact factor of Anales de Pediatría].
BACKGROUND
The aim of this study was to present bibliometric indicators of the impact of Anales de Pediatría in 2001 and to compare this journal with other Spanish pediatrics journals.


METHODS
A total of 5,388 bibliographic references from 1999, 2000 and 2001 corresponding to citable articles published in 2001 in a sample of 87 selected Spanish medical journals were analyzed. The indicators obtained were the number of citations, the national and international impact factor (IF) and the immediacy index.


RESULTS
The national IF of Anales de Pediatría was 0.334 and the international IF was 0.372. The immediacy index was 0.111.


CONCLUSIONS
This study confirms the leadership of Anales de Pediatría, since this journal is the most frequently cited Spanish pediatrics journal and has the highest IF and immediacy index. The bibliometric indicators obtained are comparable with those observed in other journals included in Journal Citation Reports.
Instituto de Historia de la Ciencia y Documentación López Piñero, Consejo Superior de Investigaciones Científicas-Universidad de Valencia, Valencia, Spain. aleixand@uv.es
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Aleixandre Benavent
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Valderrama Zurián
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Castellano Gómez
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Simó Meléndez
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Navarro Molina
D015706:Bibliometrics; D006801:Humans; D038622:Internationality; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D011643:Publishing / Q000706:statistics & numerical data; D013030:Spain