Characteristics and Longevity of Electronic Citations in Four Leading Biomedical Journals in Spain
Por:
de Laiglesia, MAV, Alfonso, F, Miro, O, Casademont, J, Santos, PB, Burillo-Putze, G, Perez, CF, Martin-Sanchez, FJ
Publicada:
1 oct 2014
Resumen:
Introduction and objectives: We aimed to determine the frequency of use and accessibility over time of electronic citations in Revista Espanola de Cardiologia and 3 other Spanish biomedical journals, and to identify the factors that influence the accessibility and retrievability of these links.
Methods: A cross-sectional, descriptive study was performed of all the references in articles published in the first issue of each even year from 2002 to 2012 in selected journals. Data were collected on the journal, publication, references, and links. The variables analyzed were the percentage of articles with at least 1 electronic citation, the percentage of electronic citations with respect to the total number of citations in the full sample, and the percentages of link accessibility and retrievability.
Results: We included 377 articles, of which 73 (19.4%; 95% confidence interval, 15.2%-23.5%) had at least 1 electronic citation, and a total of 7077 references, of which 164 (2.3%; 95% confidence interval, 2.0%-2.7%) were electronic citations. Revista Espanola de Cardiologia had 17 (15.2%) and 38 (1.3%), respectively. Use of electronic citations significantly increased over time (linear tendency, P < .001); 58 (35.4%; 95% confidence interval, 27.7%-43.0%), links were accessible, and information was retrieved in 55 cases (51.9%; 95% confidence interval, 41.9%-61.9%). Accessibility significantly decreased over time (linear tendency, P < .001); 45 electronic citations (27.5%; 95% confidence interval, 20.3%-34.6%) had complete additional information. Retrievability was significantly associated with the amount of additional information (linear tendency, P < .001).
Conclusions: Electronic citations are increasingly used in some Spanish biomedical journals. Access to electronic citations is lost over time, and the probability of its retrieval is associated with the existence of additional information. (C) 2014 Sociedad Espanola de Cardiologia. Published by Elsevier Espana, S.L.U. All rights reserved.
Filiaciones:
de Laiglesia, MAV:
Hosp Clin San Carlos, Serv Med Prevent, Unidad Invest, Madrid 28040, Spain
Alfonso, F:
Hosp La Princesa, Serv Cardiol, Madrid, Spain
Miro, O:
Hosp Clin Barcelona, Area Urgencias, Barcelona, Spain
IDIBAPS, Grp Invest Urgencias Proc & Patol UPPs, Barcelona, Spain
Casademont, J:
Hosp Santa Creu & Sant Pau, Med Interna Serv, Barcelona, Spain
Santos, PB:
IDIBAPS, Grp Invest Urgencias Proc & Patol UPPs, Barcelona, Spain
Burillo-Putze, G:
Hosp Univ Canarias, Serv Urgencias, Santa Cruz De Tenerife, Spain
Univ La Laguna, Fac Med, Unidad Farmacol, Tenerife, Spain
Perez, CF:
Hosp Clin San Carlos, Serv Med Prevent, Unidad Invest, Madrid 28040, Spain
Hosp Clin San Carlos, Serv Urgencias, Madrid, Spain
Martin-Sanchez, FJ:
Hosp Clin San Carlos, Serv Urgencias, Madrid, Spain
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