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 +/- 5.3 degrees, p=0.25 vs. science -0.7 +/- 5.3 degrees, 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.
Quantification of scientific output in cardiovascular medicine: a perspective based on global data / G. A., Rodriguez Granillo; A. E., Rodriguez; N., Bruining; J., Milei; J., Aoki; K., Tsuchida; R., Del Valle Fernandez; C. A., Arampatzis; A. T. L., Ong; P. A., Lemos; Francisco F., Ayala; H. M., Garcia Garcia; F., Saia; M., Valgimigli; E., Regar; E., Mcfadden; BIONDI ZOCCAI, Giuseppe; E., Barbenza; P., Schoenhagen; P. W., Serruys. - In: EUROINTERVENTION. - ISSN 1774-024X. - STAMPA. - 9:8(2013), pp. 975-978. [10.4244/eijv9i8a163]
Quantification of scientific output in cardiovascular medicine: a perspective based on global data.
BIONDI ZOCCAI, GIUSEPPE;
2013
Abstract
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 +/- 5.3 degrees, p=0.25 vs. science -0.7 +/- 5.3 degrees, 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
