Quantification of Scientific Output in Cardiovascular Medicine: A Perspective Based on Global Data

• Autores: Rodriguez Granillo, Gaston Alfredo; Rodríguez, Alfredo; Bruining, Nico; Milei, Jose; Aoki, Jiro; Tsuchida, Keiichi; del Valle Fernández, Raquel; Arampatzis, Chourmouzios A.; Ong, Andrew T. L.; Lemos, Pedro A.; Ayala, Francisco; Garcia Garcia, Hector M.; Saia, Francesco; Valgimigli, Marco; Regar, Evelyn; McFadden, Eugene; Biondi Zoccai, Giuseppe; Barbenza, Ezequiel; Schoenhagen, Paul; Serruys, Patrick W.
• Año de publicación: 2013
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Healthcare; H-Index; Gross Domestic Expenditure
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

AIMS: We sought to explore whether global and regional scientific output in cardiovascular medicine is associated with economic variables and follows the same trend as medicine and as science overall. METHODS AND RESULTS: We registered the number of documents, number of citations, citations per document and the h-index for the first 50 countries according to the h-index (a measure to evaluate both the productivity and impact of the publications) in cardiovascular medicine. Economic variables (gross domestic product [GDP] per capita, % expenditure of the GDP in research and development [R&D] and health) were obtained from the World Bank, the UNESCO, and the World Health Organization. In total, the scientific output in cardiology showed the same position as in medicine and science overall (mean difference vs. medicine -0.9±5.3º, p=0.25 vs. science -0.7±5.3º, p=0.39). We found significant correlations between the h-index and the % GDP expenditure in R&D (r=0.67, p<0.001), and the % GDP expenditure in health (r=0.71, p<0.0001). Overall, there was a 21.4% (interquartile range 3.7; 55.0) increase in the % GDP expenditure in R&D between 1996 and 2007. Emerging economies showed the larger growth in % GDP expenditure in health and R&D. CONCLUSIONS: The global situation of scientific output in cardiovascular medicine is highly polarised and closely related to economic indicators. Emergent economies, with higher rates of GDP growth and increasingly larger expenditures for R&D and healthcare, are expected to show a visible escalation in the scientific global picture in the near future.
Fil: Rodriguez Granillo, Gaston Alfredo. Hospital Otamendi; Argentina. Clinica La Sagrada Familia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rodríguez, Alfredo. Hospital Otamendi; Argentina
Fil: Bruining, Nico. Thoraxcenter; Países Bajos
Fil: Milei, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Cardiológicas (i); Argentina
Fil: Aoki, Jiro. Mitsui Memorial Hospital; Japón
Fil: Tsuchida, Keiichi. Niigata City General Hospital; Japón
Fil: del Valle Fernández, Raquel. Hospital Universitario Central de Asturias; España
Fil: Arampatzis, Chourmouzios A.. Interbalkan Medical Center; Grecia
Fil: Ong, Andrew T. L.. Westmead Hospital; Australia
Fil: Lemos, Pedro A.. Universidade de Sao Paulo; Brasil
Fil: Ayala, Francisco. Universidad de Chile. Hospital de Clinicas; Chile
Fil: Garcia Garcia, Hector M.. Thoraxcenter; Países Bajos
Fil: Saia, Francesco. Policlinico S. Orsola; Italia
Fil: Valgimigli, Marco. Azienda Ospedialiero - Universitaria di Ferrara; Italia
Fil: Regar, Evelyn. Thoraxcenter; Países Bajos
Fil: McFadden, Eugene. Cork University Hospital; Irlanda
Fil: Biondi Zoccai, Giuseppe. Instituto de Investigaciones Universitarias Roma la Sapienza; Italia
Fil: Barbenza, Ezequiel. Université d’Evry-Val-d’Essonne; Francia
Fil: Schoenhagen, Paul. Cleveland Clinic; Estados Unidos
Fil: Serruys, Patrick W.. Thoraxcenter; Países Bajos