Literatura científica en el ámbito del tabaquismo y el sistema respiratorio: repercusión y colaboración / Scientific Literature Among Smoking and Respiratory System: Repercussion and Collaboration

OBJETIVO: Analizar la distribución de la producción, la repercusión y la colaboración mundial en tabaquismo en el área del aparato respiratorio a través del Science Citation Index-Expanded (SCI-E) en el periodo 2001-2010 y su inclusión en el primer cuartil del Journal Citation Report (JCR). MÉTODOS: La búsqueda bibliográfica fue realizada en el SCI-E. La estrategia de búsqueda empleada fue «smok*» OR «tobac*», delimitándose la investigación al periodo 2001-2010, documentos «articles» para el área del aparato respiratorio. RESULTADOS: A nivel mundial, en el área del aparato respiratorio y para el periodo analizado se encontraron un total de 1.858 artículos (ignorando la colaboración) sobre tabaquismo. La media del número de artículos publicados por quinquenio fue superior para el periodo 2006-2010 que para el 2001-2005; sin embargo, el número de citas recibidas fue superior para los documentos publicados en el primer quinquenio comparado con el segundo y, como consecuencia, el índice de citación también resultó superior en el primer quinquenio con respecto al segundo. El 40,47% de los artículos (752 documentos; ignorando la colaboración) estaban publicados en revistas del primer cuartil. Hemos encontrado una red de colaboración entre países bien establecida y cohesionada. CONCLUSIONES: La producción en tabaquismo en el área de respiratorio aumentó a lo largo del periodo analizado, hallándose el 40% de dicha producción en las revistas situadas en el primer cuartil del JCR. Encontramos una alta citación, siendo la Unión Europea de los 27 la que presenta una mayor repercusión e impacto. La red de colaboración se encuentra activa, bien consolidada y cohesionada (AU)

AIM: To analyze the distribution of the production, repercussion and co-authorship of articles on smoking in the "respiratory system" category through the Science Citation Index Expanded (SCI-E) and their inclusion in the first quartile of the Journal Citation Report (JCR). METHODS: The literature search was performed in the SCI-E. Articles were selected for 2001-2010 for "respiratory system" using the descriptors "smok*" and "tobac*". RESULTS: We found 1858 articles (ignoring collaboration) on the topic of smoking. The median number of published articles by five-year period was higher for the 2006-2010 period vs the 2001-2005 period; in contrast, the number of citations and the citation index was higher for documents published in the first five-year period. Some 40.47% (ignoring collaboration) of the articles (752 documents, ignoring collaboration) were published in first quartile journals. We found very well established and cohesive co-authorship networks. CONCLUSIONS: Articles on smoking in the area of respiratory medicine increased in this time period, with 40% of the total documents in journals in the first quartile of the JCR. The citation rate was high, with the EU-27 countries having higher impact and repercussion. We found very well established and cohesive co-authorship networks (AU)

Scientific literature among smoking and respiratory system: repercussion and collaboration.

AIM: To analyze the distribution of the production, repercussion and co-authorship of articles on smoking in the «respiratory system¼ category through the Science Citation Index Expanded (SCI-E) and their inclusion in the first quartile of the Journal Citation Report (JCR). METHODS: The literature search was performed in the SCI-E. Articles were selected for 2001-2010 for «respiratory system¼ using the descriptors «smok*¼ and «tobac*¼. RESULTS: We found 1,858 articles (ignoring collaboration) on the topic of smoking. The median number of published articles by five-year period was higher for the 2006-2010 period vs. the 2001-2005 period; in contrast, the number of citations and the citation index was higher for documents published in the first five-year period. Some 40.47% (ignoring collaboration) of the articles (752 documents, ignoring collaboration) were published in first quartile journals. We found very well established and cohesive co-authorship networks. CONCLUSIONS: Articles on smoking in the area of respiratory medicine increased in this time period, with 40% of the total documents in journals in the first quartile of the JCR. The citation rate was high, with the EU-27 countries having higher impact and repercussion. We found very well established and cohesive co-authorship networks.

Comparación entre dos quinquenios (1998/2002 y 2003/2007) de la producción, repercusión y colaboración en tabaquismo de autores españoles a través del Science Citation Index / Comparison Between Two Five Year Periods (1998/2002 and 2003/2007) on the Production, Impact and co-Authorship of Publications on Tobacco and Smoking by Spanish authors Using the Science Citation Index

ObjetivoEl 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(AU)

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 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.ConclusionsSpanish production and co-authorship of documents on smoking and tobacco have increased between these two periods. The earlier period documents received more citations(AU)

Comparison between two five year periods (1998/2002 and 2003/2007) on the production, impact and co-authorship of publications on tobacco and smoking by Spanish authors using the Science Citation Index.

OBJECTIVE: 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). METHODS: 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). RESULTS: 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. CONCLUSIONS: Spanish production and co-authorship of documents on smoking and tobacco have increased between these two periods. The earlier period documents received more citations.

Redes de colaboración científica internacional en tabaquismo: análisis de coautorías mediante el Science Citation Index durante el periodo 1999-2003 / Network of international scientific collaboration on smoking: analysis of coauthorship through the Science Citation Index (1999-2003)

Objetivo: El objetivo de este trabajo fue establecer los patrones de colaboración científica internacional y la visibilidad que genera la coautoría de artículos sobre tabaquismo en relación a países, a través del Science Citation Index-Expanded (SCI-Expanded) en el periodo de 1999 a 2003. Material y métodos: Se seleccionaron los artículos de colaboración sobre tabaquismo entre países en SCI-Expanded (1999-2003). Se analizaron las redes de colaboración subyacente entre países, comparando su productividad (número de artículos producidos), su visibilidad (número de citas recibidas) y centralidad (grado nodal, intermediación y proximidad). Resultados: Se recuperaron 3.484 artículos en los que habían participado 5.008 instituciones de 79 países. Reino Unido fue el más productivo, seguido de Alemania y Francia. Reino Unido fue, asimismo, el país que publicó más artículos (570) de colaboración interinstitucional, seguido de Estados Unidos y Alemania. Sin embargo, Estados Unidos fue el que publicó más artículos en colaboración internacional, seguido de Reino Unido y Francia. Todos los países recibieron más citas por sus artículos de colaboración interinstitucional o internacional que por los publicados sin ningún tipo de colaboración. Las redes de colaboración se encuentran completamente conectadas en un único componente, y el aumento que experimenta anualmente el tamaño de estas redes entre países se realiza a expensas de países nuevos en la periferia de la red. Conclusión: Existe una correlación positiva entre la colaboración internacional e interinstitucional y el número de citas que recibe un artículo. La citación de artículos se mantiene constante a lo largo del periodo analizado (AU)

Objective: The aim of this study was to analyze patterns of scientific collaboration and the visibility generated by coauthorship of articles on smoking among different countries on a world-wide basis through the Science Citation Index-Expanded (SCI-expanded) from 1999 to 2003. Material and methods: We selected articles on smoking resulting from collaboration among different countries in the SCI-Expanded (1999-2003). The underlying networks of collaboration among countries were analyzed by comparing production (number of articles published), visibility (number of citations received) and centrality (node degree, intermediation and proximity). Results: A total of 3,484 articles were obtained, in which 5,008 institutions from 79 countries participated. The most productive country was the United Kingdom, with Germany and France in the second and third places. The United Kingdom also published the largest number of articles with inter-institutional collaboration (570 articles), with the USA and Germany in second and third places. The USA published the largest number of articles with international collaboration with the United Kingdom and France in the second and third places. All countries received a greater number of citations for articles resulting from international and inter-institutional collaboration than for those performed without collaboration. Networks of collaboration were completely connected through a single component and the annual increase in size of these inter-country networks was due to new countries joining the periphery of the network. Conclusions: We found a positive correlation between international and inter-institutional collaboration and the number of citations received by articles on smoking research. The number of citations per year remained constant throughout the 5-year study period (AU)

[Network of international scientific collaboration on smoking: analysis of coauthorship through the Science Citation Index (1999-2003)]. / Redes de colaboración científica internacional en tabaquismo: análisis de coautorías mediante el Science Citation Index durante el periodo 1999-2003.

OBJECTIVE: The aim of this study was to analyze patterns of scientific collaboration and the visibility generated by coauthorship of articles on smoking among different countries on a world-wide basis through the Science Citation Index-Expanded (SCI-expanded) from 1999 to 2003. MATERIAL AND METHODS: We selected articles on smoking resulting from collaboration among different countries in the SCI-Expanded (1999-2003). The underlying networks of collaboration among countries were analyzed by comparing production (number of articles published), visibility (number of citations received) and centrality (node degree, intermediation and proximity). RESULTS: A total of 3,484 articles were obtained, in which 5,008 institutions from 79 countries participated. The most productive country was the United Kingdom, with Germany and France in the second and third places. The United Kingdom also published the largest number of articles with inter-institutional collaboration (570 articles), with the USA and Germany in second and third places. The USA published the largest number of articles with international collaboration with the United Kingdom and France in the second and third places. All countries received a greater number of citations for articles resulting from international and inter-institutional collaboration than for those performed without collaboration. Networks of collaboration were completely connected through a single component and the annual increase in size of these inter-country networks was due to new countries joining the periphery of the network. CONCLUSIONS: We found a positive correlation between international and inter-institutional collaboration and the number of citations received by articles on smoking research. The number of citations per year remained constant throughout the 5-year study period.

[Spanish medical center collaboration on smoking research from 1999 through 2003 according to the Science Citation Index]. / Análisis de la red de colaboración científica sobre tabaquismo entre centros sanitarios españoles a través del Science Citation Index (1999-2003).

OBJECTIVE: To analyze the network structure of collaboration between medical centers sharing authorship of scientific articles on smoking. MATERIAL AND METHODS: Articles reporting smoking research by authors from 2 or more Spanish medical centers between 1999 and the end of 2003 were identified through the Science Citation Index. The network of collaboration behind the research was analyzed and the most important measures of centrality were compared. To display the data, scientometric maps were constructed using UCINET and NETDRAW network analysis tools. RESULTS: Thirty-five Spanish medical centers (29 hospitals and 6 health care clinics) in 8 autonomous communities were involved in 21 collaborative research projects. Hospital de La Princesa was the network core institution with the highest degrees of nodal (16), closeness (88.66), and betweenness (39) centrality. Other core nodes in the network were the following hospitals: de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron, and General Yagüe. The autonomous communities of Castile and Leon, Madrid, and Catalonia were assigned positions at the core of the intercommunity collaborative network based on coauthorship of scientific papers shared among their medical centers. CONCLUSIONS: Network analysis helps identify the most influential institutions in a scientific community that generates coauthored articles in the field of smoking research. Hospital de la Princesa had the highest measures of centrality. The autonomous communities of Castile and Leon, Madrid, and Catalonia form a highly connected, cohesive subgroup within the network.

Análisis de la red de colaboración científica sobre tabaquismo entre centros sanitarios españoles a través del Science Citation Index (1999-2003) / Spanish medical center collaboration on smoking research from 1999 through 2003 according to the science citation index

Objetivo: Analizar la red de colaboración científica que genera la coautoría de artículos científicos entre centros sanitarios españoles en el área de tabaquismo. Material y métodos: Se seleccionaron los artículos sobre tabaquismo aparecidos en Science Citation Index entre los años 1999 a 2003, en cuya autoría participaron 2 o más centros sanitarios españoles. Se analizó la red de colaboración subyacente, comparando las medidas más importantes de centralidad y elaborando mapas bibliométricos que permiten su visualización. Se emplearon las herramientas informáticas para el análisis de redes UCINET® y NETDRAW®. Resultados: Treinta y cinco centros sanitarios españoles (29 hospitales y 6 centros de salud), pertenecientes a 8 comunidades autónomas distintas, intervinieron en 21 trabajos de colaboración nacional interinstitucional entre centros sanitarios. El Hospital de La Princesa obtiene los valores más altos de grado nodal (16), grado de proximidad normalizado (86,66) y grado de intermediación (39), y forma parte del núcleo de la red, junto con los Hospitales de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron y General Yagüe. Las comunidades autónomas de Castilla y León, Madrid y Cataluña son asignadas al núcleo de la red de colaboración intercomunitaria basada en la coautoría de trabajos científicos entre centros sanitarios. Conclusiones: El análisis de redes permite identificar las instituciones más influyentes en la red de colaboración científica que genera la coautoría de artículos científicos en el área de tabaquismo. El Hospital de la Princesa destaca en todas las medidas de centralidad. Las comunidades autónomas de Castilla y León, Madrid y Cataluña configuran un subgrupo de la red altamente interconectado y cohesionado

Objective: To analyze the network structure of collaboration between medical centers sharing authorship of scientific articles on smoking. Material and methods: Articles reporting smoking research by authors from 2 or more Spanish medical centers between 1999 and the end of 2003 were identified through the Science Citation Index. The network of collaboration behind the research was analyzed and the most important measures of centrality were compared. To display the data, scientometric maps were constructed using UCINET and NETDRAW network analysis tools. Results: Thirty-five Spanish medical centers (29 hospitals and 6 health care clinics) in 8 autonomous communities were involved in 21 collaborative research projects. Hospital de La Princesa was the network core institution with the highest degrees of nodal (16), closeness (88.66), and betweenness (39) centrality. Other core nodes in the network were the following hospitals: de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron, and General Yagüe. The autonomous communities of Castile and Leon, Madrid, and Catalonia were assigned positions at the core of the intercommunity collaborative network based on coauthorship of scientific papers shared among their medical centers. Conclusions: Network analysis helps identify the most influential institutions in a scientific community that generates coauthored articles in the field of smoking research. Hospital de la Princesa had the highest measures of centrality. The autonomous communities of Castile and Leon, Madrid, and Catalonia form a highly connected, cohesive subgroup within the network

[Spanish productivity in smoking research relative to world and European union productivity from 1999 through 2003, analyzed with the science citation index]. / Producción española en tabaquismo a través del Science Citation Index (1999-2003). Situación en el contexto mundial y de la Unión Europea.

OBJECTIVE: To analyze Spanish scientific productivity from 1999 through 2003 in the area of smoking research, in comparison with world and European Union research, based on data in the Science Citation (SCI) Index. MATERIAL AND METHODS: This bibliometric study was carried out by searching the title field of the Science Citation Index Expanded. Descriptive statistics with 95% confidence intervals (CI) were compiled. RESULTS: Two-hundred ninety-two documents on smoking by Spanish authors were located. The most productive subspecialties were the group comprised of public health, education and health economics with 57 articles, and areas of the respiratory system, experimental research, and internal medicine with 36 articles each. The journals that published the largest number of articles located were Medicina Clínica, with 35 articles (12%) and Archivos de Bronconeumología with 20 (6.8%). International collaboration was undertaken with institutions in the United States of America and other European Union countries. The mean (SD) number of citations received was 5.12 (8.6) (range 59-0). Spain contributed 8.34% of the SCI-indexed smoking research overall and 12.85% of SCI-indexed smoking research from the European Union. CONCLUSIONS: Smoking research is developing appropriately in Spain and has high impact, even though output is modest. Factors associated with increased citation are international collaboration, language (being written in English), and having a non-Spanish first author.

Producción española en tabaquismo a través del Science Citation Index (1999-2003). Situación en el contexto mundial y de la Unión Europea / Spanish productivity in smoking research relative to world and European Union Productivity from 1999 through 2003, analyzed with the Science Citation Index

Objetivo: Analizar a través del Science Citation Index la producción científica española en tabaquismo entre 1999 y 2003, situando a nuestro país en el contexto mundial y de la Unión Europea. Material y métodos: Se ha realizado un estudio bibliométrico mediante la búsqueda en el campo "título" del Science Citation Index Expanded. El análisis estadístico fue descriptivo (intervalo de confianza del 95%). Resultados: Se recopilaron 292 documentos sobre tabaquismo publicados por autores españoles. Las subáreas más productivas fueron las siguientes: salud pública, educación y economía de la salud con 57 documentos, seguidas de las subáreas de respiratorio, investigación experimental y medicina interna con 36 artículos cada una. Medicina Clínica, con 35 artículos (12%), y Archivos de Bronconeumología, con 20 (6,8%), fueron las revistas con un mayor número de documentos. La colaboración internacional se realizó con instituciones de la Unión Europea y EE UU, y la media ± desviación estándar de citaciones recibidas fue de 5,12 ± 8,6 (intervalo: 59-0). España aporta a la producción mundial en tabaquismo el 8,34%, y a la de la Unión Europea el 12,85%. Conclusiones: La investigación en tabaquismo en España se desarrolla adecuadamente, con una alta repercusión, aunque la aportación es discreta. La colaboración internacional, el hecho de que el artículo esté escrito en inglés y que el primer firmante sea extranjero son las variables que aumentan el número de citas

Objective: To analyze Spanish scientific productivity from 1999 through 2003 in the area of smoking research, in comparison with world and European Union research, based on data in the Science Citation (SCI) Index. Material and methods: This bibliometric study was carried out by searching the title field of the Science Citation Index Expanded. Descriptive statistics with 95% confidence intervals (CI) were compiled. Results: Two-hundred ninety-two documents on smoking by Spanish authors were located. The most productive subspecialties were the group comprised of public health, education and health economics with 57 articles, and areas of the respiratory system, experimental research, and internal medicine with 36 articles each. The journals that published the largest number of articles located were Medicina Clínica, with 35 articles (12%) and Archivos de Bronconeumología with 20 (6.8%). International collaboration was undertaken with institutions in the United States of America and other European Union countries. The mean (SD) number of citations received was 5.12 (8.6) (range 59-0). Spain contributed 8.34% of the SCI-indexed smoking research overall and 12.85% of SCI-indexed smoking research from the European Union. Conclusions: Smoking research is developing appropriately in Spain and has high impact, even though output is modest. Factors associated with increased citation are international collaboration, language (being written in English), and having a non-Spanish first author

Sepsis grave y celulitis por Vibrio cholerae no 01 en un paciente inmunocompetente / Severe sepsis and cellulitis caused by vidrio cholerae no-01 in an immunocompetent patient

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