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ABSTRACT: BACKGROUND: Publications are often used as a measure of success of research work. Leishmaniasis is considered endemic in 98 countries, most of which are developing. This article describes a bibliometric review of the literature on leishmaniasis research indexed in PubMed during a 66-year period. METHODS: Medline was used via the PubMed online service of the US National Library of Medicine. The search strategy was Leishmania [MeSH] or leishmaniasis [MeSH] from 1 January 1945 until 31 December 2010. Neither language nor document type restrictions were employed. RESULTS: A total of 20,780 references were retrieved. The number of publications increased steadily over time, with 3,380 publications from 1945-1980 to 8,267 from 2001-2010. Leishmaniasis documents were published in 1,846 scientific journals, and Transactions of the Royal Society of Tropical Medicine and Hygiene (4.9%) was the top one. The USA was the predominant country by considering the first author's institutional address (16.8%), followed by Brazil (14.9%), and then India (9.0%), however Brazil leads the scientific output in 2001-2010 period (18.5%), followed by the USA (13.5%) and India (10%). The production ranking changed when the number of publications was normalised by population (Israel and Switzerland), by gross domestic product (Nepal and Tunisia), and by gross national income per capita (India and Ethiopia). For geographical area, Europe led (31.7%), followed by Latin America (24.5%). CONCLUSIONS: We have found an increase in the number of publications in the field of leishmaniasis. The USA and Brazil led scientific production on leishmaniasis research.
Parasites & Vectors 03/2013; 6(1):55. · 2.94 Impact Factor
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ABSTRACT: BACKGROUND: The research of alcohol consumption-related problems is a multidisciplinary field. The aim of this study is to analyze the worldwide scientific production in the area of alcohol-drinking and alcohol-related problems from 2005 to 2009. METHODS: A MEDLINE and Scopus search on alcohol (alcohol-drinking and alcohol-related problems) published from 2005 to 2009 was carried out. Using bibliometric indicators, the distribution of the publications was determined within the journals that publish said articles, specialty of the journal (broad subject terms), article type, language of the publication, and country where the journal is published. Also, authorship characteristics were assessed (collaboration index and number of authors who have published more than 9 documents). The existing research groups were also determined. RESULTS: About 24,100 documents on alcohol, published in 3,862 journals, and authored by 69,640 authors were retrieved from MEDLINE and Scopus between the years 2005 and 2009. The collaboration index of the articles was 4.83 ± 3.7. The number of consolidated research groups in the field was identified as 383, with 1,933 authors. Documents on alcohol were published mainly in journals covering the field of "Substance-Related Disorders," 23.18%, followed by "Medicine," 8.7%, "Psychiatry," 6.17%, and "Gastroenterology," 5.25%. CONCLUSIONS: Research on alcohol is a consolidated field, with an average of 4,820 documents published each year between 2005 and 2009 in MEDLINE and Scopus. Alcohol-related publications have a marked multidisciplinary nature. Collaboration was common among alcohol researchers. There is an underrepresentation of alcohol-related publications in languages other than English and from developing countries, in MEDLINE and Scopus databases.
Alcoholism Clinical and Experimental Research 09/2012; · 3.34 Impact Factor
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ABSTRACT: The aim of this study was to compare the production, impact and co-authorship of publications by Spanish authors on smoking and tobacco between two time periods (1998/2002 vs 2003/2007) using Science Citation Index (SCI).
The literature search was performed in the SCI-Expanded on 20 November 2008. All types of documents by Spanish authors were selected. The search was restricted to the title, and the key words used were "smok*" and "tobac*". The statistical analysis was descriptive (95% CI).
A total of 588 documents were obtained, with 399 (67.85%) original papers, 54 (9.18%) letters to the editor, and 35 (5.95%) editorials. Productivity increased between the 98/02 to 03/07 periods: 234 (39.8%) documents versus 354 (60.2%). We have found significant differences between the two periods (98/02 vs 03/07) in total mean annual documents (47 ± 8 vs 71 ± 16 [p=0.024]) and total mean annual original papers (34 ± 6 vs 46 ± 9 [p=0.041]). The mean number of citations per document was 14.1 ± 2.1 for 98/02 period and 5.6 ± 2.5 for 03/07 period (p=0.003). The co-authorship annual index had increased; with a mean of 6.77 signatures/document for 98/02 period to a mean of 6.87 for 03/07 period. Authors and institution networks collaborations had increased between the two periods.
Spanish production and co-authorship of documents on smoking and tobacco have increased between these two periods. The earlier period documents received more citations.
Archivos de Bronconeumología 01/2011; 47(1):25-34. · 2.17 Impact Factor
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Gastroenterología y Hepatología 11/2010; 33(9):670-80. · 0.73 Impact Factor
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ABSTRACT: Collaboration is essential for biomedical research. The Carlos III Health Institute (the Spanish national public organization responsible for promoting biomedical research) has encouraged scientific collaboration by promoting Thematic Networks and Cooperative Research Centres. Scientific collaboration in Enfermedades Infecciosas y Microbiología Clinica journal is investigated.
Papers published in Enfermedades Infecciosas y Microbiología Clinica in the period 2002-2007 have been identified. Bibliometrics and Social Network Analysis methods have been carried out in order to quantify and characterise scientific collaboration and research areas.
A total of 805 papers generated by 2,289 authors and 326 institutions have been analysed. There were 36 research groups involving 138 authors identified. The Collaboration Index for articles was 5.5. Institutional collaboration was determined in 75% of articles. The collaboration between departments or units of the same institution prevails (43%), followed by intra-regional domestic collaboration (41%) and inter-regional domestic collaboration (14%). Hospital centres were the main institutional sector responsible of research (88% of papers), with 68% of articles cited. Sida/VIH (AIDS/HIV) is the main research area (n=114), followed by Staphylococcal Infections (n=33).
Notable collaboration and citation rates have been observed. Research is focused on diseases with the highest mortality rates caused by infectious diseases in Spain.
Enfermedades Infecciosas y Microbiología Clínica 04/2010; 28(8):509-16. · 1.49 Impact Factor
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ABSTRACT: Twenty years of Spanish psychological research in Psicothema (1989-2008). Scientific collaboration and gender equality are two spheres of great interest for the organizations responsible for instigating scientific policies. We have identified the research groups and women's contribution to one of the most outstanding Spanish psychology journals. We have selected papers published during the 1989-2008 period in Psicothema. A bibliometric and network analysis was carried out using the Pajek Software tool. We have analysed 1,718 papers, written by 2,423 authors, 53.45% men and 47.54% women. We have identified 86 research groups made up of 293 researchers. We have observed a high increase of productivity and collaboration in the 1999-2008 period, as well as the consolidation, growth, and evolution of many incipient groups identified in the 1989-1998 period, benefiting from the increased interest and prestige of the journal. Despite the increase in the number of women, rising from 35.71% in 1989 to 48.48 in 2008, we have observed an imbalance with regard to productivity and the order of signatures, where women are relegated to intermediate positions.
Psicothema 02/2010; 22(1):41-50. · 1.02 Impact Factor
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ABSTRACT: Scientific cooperation is essential for the advance of biomedical research. Scientists set up informal groups to work together on common issues, who are the main units in the research funding system. Bibliometric and Social Network Analysis methods allow informal groups in scientific papers to be identified and characterised. The objective of the study is to identify research groups in Archivos de Bronconeumología between 2003 and 2007 period with the aim of characterizing their scientific collaboration patterns and research areas.
Co-authorships, institutional collaboration relationships and the main research areas of papers published in Archivos de Bronconeumología have been identified. Co-authorship networks and institutional collaboration networks have been constructed by using Pajek software tool.
A total of 41 research groups involving 171 investigators have been identified. The Collaboration Index for articles was 5.59 and the Transcience Index was 73.11%. There was institutional collaboration in 60.33% of papers. The collaboration between institutions of the same region prevails (41.03%), followed by collaborations between departments, services or units of the same institution (39.74%), inter-regional collaboration (14,97%) and international collaboration (6.83%). A total of 83.03% of articles were cited. The main research areas covered by groups were chronic obstructive pulmonary disease, asthma, lung neoplasm, bronchogenic carcinoma, smoking and pulmonary embolism.
The scientific production of a large number of Respiratory System Spanish research groups is published in Archivos de Bronconeumología. A notable collaboration and citation rate has been observed. Nevertheless, it is still essential to encourage inter-regional and international collaboration.
Archivos de Bronconeumología 02/2010; 46(2):78-84. · 2.17 Impact Factor
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ABSTRACT: The article presents an analysis of the scholarly output of female professors in the field of Health Science in the Autonomous Region of Valencia from 2003 to 2007, through bibliometric techniques and the application of a gender variable. The work attempted to identify how many women became large producers of scholarly articles compared to those who did not reach the same levels of productivity and impact. A total of 3,739 articles were retrieved during this period and the gender of all authors with more than 2 articles was identified. Of these authors 2,774 (60.41 %) were male and 1,818 (39.59 %) were female. Focusing solely on large producers, the percentage of women publishing more than 10 papers was reduced to 26.72 %. As regards to scientific collaboration, it is significant to note that women are included in all clusters of at least 10 authors and in some cases their presence is comparable with that of men. Although women’s participation is lower than men’s in all areas of knowledge, it is noteworthy that in Health Sciences the difference is not as great as in other technical areas. Women’s contribution to the scientific field is increasing, suggesting the possibility of a signifi cant improvement in gender parity in the coming years.Se presenta la producción científica de las profesoras universitarias en el área de las Ciencias de la Salud de la Comunitat Valenciana durante el quinquenio 2003- 2007 aplicando técnicas bibliométricas y realizando un análisis de género con el fin de conocer cuántas llegan a ser grandes productoras de artículos científicos frente a las que no alcanzan estos niveles de productividad e impacto. Se han recuperado 3.739 artículos durante el período estudiado, identificando el género de todos los autores con más de 2 artículos. De estos autores, 2.774 (60,41 %) son hombres y 1.818 (39,59 %) son mujeres, pero si se analizan solamente a los grandes productores, las autoras con más de 10 trabajos únicamente llegan a ser el 26,72 %. Respecto a la colaboración científica hay que resaltar que las mujeres están presentes en todas las redes de al menos 10 autores y en algunos casos su presencia se equipara a la de los hombres. Pese a que la participación de la mujer en todas las áreas del conocimiento es inferior a los hombres, en las Ciencias de la Salud la proporción es menor que en otras áreas técnicas. La aportación de las mujeres al ámbito científico es cada vez mayor pudiendo alcanzar la paridad con el paso de los años.
Revista Española de Documentación Científica. 01/2010;
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Rafael Aleixandre-Benavent,
Adolfo Alonso-Arroyo,
Francisco J Chorro-Gascó,
Fernando Alfonso-Manterola, Gregorio González-Alcaide,
María Jesús Salvador-Taboada,
Máxima Bolaños-Pizarro,
Esteban López de Sá y Areses,
Juan Carlos Valderrama-Zurián,
Gonzalo Barón-Esquivias,
Leandro Plaza-Celemín,
Eduardo de Teresa-Galván,
Carlos Macaya-Miguel,
Luis Alonso Pulpón-Rivera,
Manuel Anguita-Sánchez,
Julián Pérez-Villacastín,
Luis Escosa-Royo,
Fernando Martin-Burrieza
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ABSTRACT: The publication of research articles has increased considerably in recent years in all biomedical fields. The present study examines the position of Spanish quality research in cardiology in the European and world context, and its evolution during the 5-year period 2003-2007.
Using the Science Citation Index Expanded of Thomson Reuters as data source, we compared Spanish cardiovascular scientific production with that of the rest of countries in the European Union and of the most important countries worldwide, along with relative productivity as per number of inhabitants and Gross Domestic Product, and the number of citations in the journals of the area of the Journal Citation Reports (CCS-JCR).
Spain ranks sixth in the European Union and ninth worldwide in scientific production (tenth worldwide if only the journals of the first quartile of the CCS-JCR area are considered). As regards the number of citations received, Spain ranks seventh in the European Union and eleventh worldwide. In terms of relative productivity as per number of inhabitants and Gross Domestic Product, the Spanish ranking is less favorable (positions 15 and 18, respectively).
The ranking of Spanish cardiovascular research is similar to that of other biomedical fields, though its position is less favorable in relation to certain demographic and economical indicators. In order to maintain adequate investigational levels, it is necessary for the European governments and scientific societies to regard the promotion of high-quality cardiological research as a priority concern.
Revista Espa de Cardiologia 12/2009; 62(12):1404-17. · 2.53 Impact Factor
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Scientometrics. 01/2009; 80:407-418.
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ABSTRACT: Aims: To analyse usability-related articles published in the period 1971-2005 from a bibliometric point of view. Methods: A search for articles was made in the CSIC databases, the Social Science Citation Index, Science Citation Index, PsycInfo, MEDLINE and Inspec databases, using ad hoc search strategies designed for each. Contribution, specific contribution and overlap indices were calculated, as were the indicators of change in scientific production, the productivity of institutions and journals, and the distribution of journals by area of knowledge. Results: An exponential increase in the number of published articles was recorded, with the highest increase seen over the last five years. The most productive institutions were mostly US universities; the most productive journals were related to Computer Science, Engineering and Psychology. Conclusions: Currently there is controversy surrounding the idea of usability as a science or scientific discipline since it lacks an appropriate training curriculum, has no set professional prof le, and it is unsure into what specific area of knowledge it falls.Objetivo: Analizar los artículos sobre usabilidad publicados durante el periodo 1971-2005 desde el punto de vista bibliométrico. Material y Métodos: Para obtener los trabajos se interrogaron las bases de datos del CSIC, Social Science Citation Index, Science Citation Index, PsycInfo, MEDLINE e Inspec mediante estrategias de búsqueda diseñadas ad hoc para cada base de datos. Se calcularon los índices de aporte, aporte específico y solapamiento y los indicadores de evolución de la productividad científica, productividad de las instituciones de trabajo y de las revistas, y distribución de las revistas por área de conocimiento. Resultados: Se ha observado un crecimiento exponencial de los artículos publicados, más acusado en el último quinquenio. Las instituciones más productivas son fundamentalmente universitarias y estadounidenses y las revistas más productivas pertenecen al campo de la informática, ingeniería y psicología. Conclusiones: en la actualidad existe una incógnita sobre la consideración de la usabilidad como ciencia o disciplina científica, ya que no cuenta con un currículo formativo acorde, ni un perfil profesional determinado, ni un área específica de conocimiento en la que se pueda englobar.
Revista Española de Documentación Científica. 01/2009;
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ABSTRACT: Spanish Scientific Research about Popular Science is analyzed to identify the main scientific agents, dissemination means and subjects in this field. It is an heterogeneous area related to several scientific disciplines and purposes, stand out above them Information and Education. 286 journal articles and 50 PhD Thesis have been analyzed, observing a high increase of publications in 90s remaining until now. The five most important research cores identified are the followings: Science Journalism, Science Literacy, Linguistics and the researches related to Museums and Scientific Disciplines such as Medicine, Environment or Archaeology.
Se analiza la producción científica española sobre divulgación de la Ciencia como objeto de investigación, identificando los principales agentes científicos, canales de difusión y ámbitos abordados. Se trata de un campo enormemente heterogéneo en el que confluyen diversas disciplinas científicas y propósitos, sobresaliendo los de informar y educar. Se han analizado 286 artículos de revista y 50 tesis doctorales. A partir de la década de los noventa es cuando se produce la eclosión de la investigación, multiplicándose el número de trabajos hasta la actualidad. Se han identificado cinco destacados núcleos temáticos de investigación: periodismo científico, alfabetización científica, lingüística, la divulgación como actividad cultural en el ámbito museístico y la investigación relacionada con determinadas disciplinas, como la Medicina, el Medio Ambiente o la Arqueología.
Arbor : Ciencia, Pensamiento y Cultura. 01/2009;
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ABSTRACT: Reproductive biology is a highly productive area. By analyzing papers published in the major journals in the period 2003-2005, the collaborative patterns were characterized.
Original research papers published in 2004 in the journals included in the first quartile of the category "Reproductive Biology" of the Journal Citation Reports (2005) were selected. A bibliometric analysis was carried out with the information obtained, thus building up the networks of coauthorship and institutional collaboration.
A total of 4,702 papers were analyzed, 96.75% signed in collaboration by two or more authors, the authors per paper index being 5.24; 73.73% of the papers were collaborations between institutions. The U.S.A. and the U.K. headed the absolute productivity ranking in number of papers, and adapting the data with respect to the population, Israel, Australia, and other European countries, such as Finland, Belgium, Sweden, and The Netherlands, had notable contributions.
We identified the networks of authors who publish in the journals with the greatest impact factor. Only some of the most productive institutions have consolidated collaborative relationships with other institutions. We identified the scientific "isolation" of some countries which, although their productivity is high, have a small number of international collaborations.
Fertility and sterility 02/2008; 90(4):941-56. · 3.97 Impact Factor
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ABSTRACT: There is growing concern for promoting equality between sexes and full integration of women in research activities. The purpose of this study is to identify the bibliometric characteristics of articles published during the 2001-2005 period in Enfermedades Infecciosas y Microbiología Clínica (EIMC) from the perspective of gender.
EIMC records for 2001-2005 were obtained from the Science Citation Index database and differences according to sex were calculated for the following indicators: year of publication, type of document, number and order of author signatures, number of collaborators, and the signature/article index at the institutional and geographical level.
A total of 2,163 authors were identified, 1,220 (56.4%) men and 943 (43.6%) women. The greatest of contribution from women was in original articles (42.32% of signatures). Excluding the Centro Nacional de Microbiología (Spanish National Center for Microbiology), the participation of women was lower than men in the most productive institutions. There were significant differences regarding the number of papers published and the number of collaborators; with greater productivity for men and a higher rate of collaboration for women.
Studies on scientific activity according to gender provide essential information to establish the basis for a policy of equality in this regard. A yearly increase of almost 1% was seen in the number of female authors contributing articles to the EIMC, which, if the trend continues, will result in parity in coming years. Nevertheless, the presence of women in positions of high productivity remains low. The causes of this difference should be identified and corrected.
Enfermedades Infecciosas y Microbiología Clínica 01/2008; 25(10):619-26. · 1.49 Impact Factor
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JASIST. 01/2008; 59:150-154.
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ABSTRACT: This paper analyses the development of Spanish research literature in the field of citation analysis and impact factor (IF) in biomedicine over the period 1981-2005. Bibliometric methods and social network analysis were used to examine papers indexed in the Science Citation Index-Expanded (SCI-Expanded), Social Sciences Citation Index (SSCI), MEDLINE, Índice Médico Español (IME) and Índice de Ciencias Sociales y Humanidades (ISOC) databases. 184 papers were identified, 79.89% of which were original research articles. Only four of these papers had been published before the 1990s. The mid 1990s saw a remarkable increase in the number of papers published (8-14 papers/year) with the highest productivity being reached from 2002 onwards (14-25 papers/year). The IME and SCI-Expanded/SSCI databases were those recording the largest numbers of papers, both in absolute (67.93% and 40.76 respectively) and singularity terms (42.39% and 21.74% respectively). The detected papers were published in 76 Biomedical and Documentation journals (82.06% and 15.22% respectively). The most productive authors were identified along with the main co-authorships and institutional collaboration networks operating in the field. These results are related to the importance of impact factor at both national and international level.Se analiza el desarrollo de la literatura científica sobre análisis de citas y Factor de Impacto (FI) en Biomedicina en España a lo largo del período 1981-2005, mediante la aplicación de metodologías bibliométricas y análisis de redes sociales a los trabajos indizados en las bases de datos Science Citation Index-Expanded (SCI-Expanded), Social Sciences Citation Index (SSCI), MEDLINE, Índice Médico Español (IME) e Índice de Ciencias Sociales y Humanidades (ISOC). Se han recuperado 184 trabajos, el 79,89% artículos originales. Únicamente cuatro de ellos han sido publicados con anterioridad a la década de 1990. Es a partir de mediados de esta década cuando se multiplica el número de trabajos (8-14 trabajos/año), alcanzándose las mayores cotas de productividad a partir del año 2002 (14- 25 trabajos/año). IME y SCI-Expanded/SSCI reúnen los mayores índices de aporte, tanto absoluto (67,93% y 40,76%, respectivamente) como específico (42,39% y 21,74%, respectivamente). Los trabajos se distribuyen en 76 revistas, tanto del área de Biomedicina (82,06% de los trabajos) como de Documentación (15,22%). Se ha identificado el núcleo de autores más productivos y las principales redes de coautoría y colaboración institucional en el área, poniéndose en relación los datos del estudio con la importancia cobrada por el FI a nivel nacional e internacional.
Revista Española de Documentación Científica. 01/2008;
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ABSTRACT: The main fields of research in Library Science and Documentation are identified by quantifying the frequency of appearance and the analysis of co-occurrence of the descriptors assigned to 11,273 indexed works in the Library and Information Science Abstracts (LISA) database for the 2004–2005 period. The analysis made has enabled three major core research areas to be identified: World Wide Web, Libraries and Education. There are a further 12 areas of research with specific development, one connected with the library sphere and another 11 connected with the World Wide Web and Internet: Networks, Computer Security, Information technologies, Electronic Resources, Electronic Publications, Bibliometrics, Electronic Commerce, Computer applications, Medicine, Searches and Online Information retrieval.
Journal of the American Society for Information Science and Technology 09/2007; 59(1):150 - 154. · 2.08 Impact Factor
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ABSTRACT: The aim of this study was to analyze the patterns of investigator and institutional collaboration in papers published in the Revista Española de Cardiología.
Details of coauthorship and institutional collaboration involved in articles published in the Revista Española de Cardiología in the period 2000-2005 were recorded and a collaboration index was derived. Collaboration networks were identified using the TextToPajek and PAJEK software tools.
Of the 980 papers analyzed, 95.1% had been authored by two or more individuals and 51.43% involved institutional collaboration. The overall collaboration index was 6.23 (standard deviation [SD] 3.1). There was a significant statistical relationship (P< .02) between the collaboration index and the journal section in which the article was published: the Original Articles and Special Reports sections had the highest collaboration indices (mean 7.87 [2.88]; and mean 6.59 [5.02], respectively). The 44 authors who had the highest publication rates were identified. In addition, 25 coauthorship networks involving 112 investigators were observed.
An analysis of collaboration networks led to the identification of a number of author networks in cardiovascular medicine in Spain, and highlighted the interrelationships between them in terms of both scientific research and scientific publications. The most significant aspect of institutional collaboration was the predominance of collaboration within institutions and within Spanish autonomous regions (i.e., 80.57% of collaborations). Possible topics for future study include an analysis of the scientific productivity of the networks identified and of changes in the pattern of collaboration over time.
Revista Espa de Cardiologia 03/2007; 60(2):117-30. · 2.53 Impact Factor
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ABSTRACT: Concern for encouraging gender equality makes it one of the high priority spheres of action for governments and organisations responsible for instigating scientific policies, with particular importance being placed on including the gender variable in evaluative analyses of scientific and technological activity. A comparative study was made, broken down by gender, of the scientific output of Spanish researchers with a high production in the field of substance abuse.
We identified the gender of 338 authors who had published more than four different articles during the period from 1999-2004 and which were indexed in the IME/Indice Médico Español and the SCI/Science Citation Index databases, making a comparative analysis of their output and collaboration patterns, based on the gender variable.
In the area of substance abuse, of those with the highest output (> 9 papers), 70% were men compared with 30% women. Among the average producers (5-9 papers), 57% of the authors identified were men and 43% women. Statistically significant differences were observed between men and women with the highest output with regard to the number of published works and those with whom they had collaborated.
There is no gender equality in the area of substance abuse, particularly when considering the top researchers. It is essential to make in-depth studies that evaluate scientific output, broken down by gender, in order to adopt the necessary corrective measures to eliminate the disparity between men and women.
Adicciones 01/2007; 19(1):45-50. · 0.80 Impact Factor
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ABSTRACT: ObjectiveThe aim of this study was to compare the production, impact and co-authorship of publications by Spanish authors on smoking and tobacco between two time periods (1998/2002 vs. 2003/2007) using Science Citation Index (SCI).MethodsThe literature search was performed in the SCI-Expanded on 20 November 2008. All types of documents by Spanish authors were selected. The search was restricted to the title, and the key words used were “smok*” and “tobac*”. The statistical analysis was descriptive (95% CI).ResultsA total of 588 documents were retrieved, with 399 (67.85%) original papers, 54 (9.18%) letters to the editor and 35 (5.95%) editorials. Productivity increased from the 98/02 to the 03/07 period: 234 (39.8%) documents versus 354 (60.2%), respectively. We have found significant differences between the two periods (98/02 vs. 03/07) in total mean annual documents (47 ± 8 vs. 71 ± 16 [p = 0.024]) and total mean annual original papers (34 ± 6 vs. 46 ± 9 [p = 0.041]). The mean number of citations per document was 14.1 ± 2.1 for the 98/02 period and 5.6 ± 2.5 for the 03/07 period (p = 0.003). The co-authorship annual index had increased, with a mean of 6.77 signatures/document for the 98/02 period to a mean of 6.87 for the 03/07 period. Author and institution network collaborations had increased from one period to the next.ConclusionsSpanish scientific production and co-authorship of documents on smoking and tobacco have increased from one period to the next. The documents from the earlier period receive more citations.ResumenObjetivoEl objetivo ha sido comparar entre dos quinquenios (1998 a 2002 con 2003 a 2007) la producción, repercusión y la colaboración de artículos sobre tabaquismo de autores españoles a través del Science Citation Index (SCI).MétodoLa búsqueda se realizó en el SCI Expanded. Fueron seleccionados todos los tipos de documentos y la búsqueda se restringió al “título”; palabras clave: “smok*” y “tobac*”.ResultadosFueron un total de 588 artículos, de los que 399 (67,85%) fueron originales, 54 (9,18%) cartas al director y 35 (5,95%) editoriales. La producción ha crecido, pasando de 234 (39,8%) documentos (98/02) a 354 (60,2%) en 03/07. Al comparar la media anual del total de artículos por quinquenios 98/02 vs. 03/07 (47 ± 8 vs. 71 ± 16 [p = 0,024]) la diferencia es significativa, igual que si comparamos las medias anuales por quinquenios de los originales (34 ± 6 vs. 46 ± 9 [p = 0,041]). La media de citas/trabajo por quinquenios fue de 14,1 ± 2,1 para 98/02 y del 5,6 ± 2,5 para 03/07 (p = 0,003). El índice de colaboración anual aumentó, pasando la media de 6,77 firmas/trabajo en 98/02 a 6,87 firmas/trabajo en 03/07. Ha aumentado el número de redes de colaboración de instituciones y autores.ConclusionesTanto la producción científica como la colaboración entre autores e instituciones han aumentado en el periodo estudiado. Son los artículos más antiguos los que más citas tienen.
Archivos de Bronconeumología ((English Edition)).
