The number of authors of scientific and technical journals increased steadily. Institutions, funding agencies and public policies promote collaborative research, but the multiple authorship raises distrust or rejection. The valuation of a personal scientific background would be more reliable if there were baseline data. We analyzed the number of authors of the original English biomedical research to obtain reference values.
We downloaded the WOS 169,740 from biomedical research with English participation published between 1990 and 2009. In each case we calculated the number of authors per paper and the proportion of single-author work. The resulting figures have been related to the number of English and foreign institutions for work. The results are expressed in the context of the disciplines and areas of biomedical research.
The average number of authors has increased by 57.56% from 4.51 in 1990 to 7.11 in 2009. The increase is greatest in the areas of infectious disease (66.07%) Neuroscience (61.29%) and Biomedicine (69.53%). The proportion of original author only dropped from 3.59 to 2.08% in the period. A significant correlation between the number of institutions and the corresponding number of authors (Spearman 0.53 p \u0026lt;0.01). This relationship is strengthened when establishing institutional cooperation with international centers. The number of authors is almost always greater than that obtained in other estimates.
The number of authors of the English biomedical research is inflated. Although both this figure and the proportion of teamwork following the general trend continued in recent years, compared with other estimates reveals that the authors of English original biomedical research are always more numerous. Discipline and level of collaboration, especially with international centers are associated with a greater number of authors per paper.
You can access the data tables and read the manuscript accepted by Clinical Medicine http://www.ingenio.upv.es/?pag=autbiomed&lang=esp
We downloaded the WOS 169,740 from biomedical research with English participation published between 1990 and 2009. In each case we calculated the number of authors per paper and the proportion of single-author work. The resulting figures have been related to the number of English and foreign institutions for work. The results are expressed in the context of the disciplines and areas of biomedical research.
The average number of authors has increased by 57.56% from 4.51 in 1990 to 7.11 in 2009. The increase is greatest in the areas of infectious disease (66.07%) Neuroscience (61.29%) and Biomedicine (69.53%). The proportion of original author only dropped from 3.59 to 2.08% in the period. A significant correlation between the number of institutions and the corresponding number of authors (Spearman 0.53 p \u0026lt;0.01). This relationship is strengthened when establishing institutional cooperation with international centers. The number of authors is almost always greater than that obtained in other estimates.
The number of authors of the English biomedical research is inflated. Although both this figure and the proportion of teamwork following the general trend continued in recent years, compared with other estimates reveals that the authors of English original biomedical research are always more numerous. Discipline and level of collaboration, especially with international centers are associated with a greater number of authors per paper.
You can access the data tables and read the manuscript accepted by Clinical Medicine http://www.ingenio.upv.es/?pag=autbiomed&lang=esp
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