OBJECTIVE: The purpose of this study was to determine authorship trends in two leading radiology journals over the past 2 decades. MATERIALS AND METHODS: All original articles (n = 5195) published in AJR and Radiology for the periods 1991-1993, 2001-2003, and 2011-2013 were reviewed. The following variables were extrapolated from each article: number of authors, radiologic subspecialty, and country of origin. The number of authors listed per article was correlated with the publication period, journal, radiologic subspecialty, and country of origin. RESULTS: The mean number of authors per article increased from 5.1 in 1991-1993 to 6.2 in 2001-2003 and to 7.1 in 2011-2013 across both journals (p < 0.0001). Both AJR and Radiology had statistically significant increases in the number of authors per article over time, but the number of authors per article in Radiology was significantly higher than that in AJR (p < 0.0001 for all study periods). The number of authors per article significantly increased for all radiologic subspecialties. The mean numbers of authors per article by country of origin are as follows: Italy, 8.3; Japan, 7.6; France, 7.5; Germany, 7.4; China, 7.3; Austria, 7.2; and South Korea, 6.8. These were significantly higher than the mean number of authors from Switzerland, which was 6.3. CONCLUSION: The number of authors significantly and consistently increased in two leading radiology journals over the past 2 decades.
OBJECTIVE: The purpose of this study was to determine authorship trends in two leading radiology journals over the past 2 decades. MATERIALS AND METHODS: All original articles (n = 5195) published in AJR and Radiology for the periods 1991-1993, 2001-2003, and 2011-2013 were reviewed. The following variables were extrapolated from each article: number of authors, radiologic subspecialty, and country of origin. The number of authors listed per article was correlated with the publication period, journal, radiologic subspecialty, and country of origin. RESULTS: The mean number of authors per article increased from 5.1 in 1991-1993 to 6.2 in 2001-2003 and to 7.1 in 2011-2013 across both journals (p < 0.0001). Both AJR and Radiology had statistically significant increases in the number of authors per article over time, but the number of authors per article in Radiology was significantly higher than that in AJR (p < 0.0001 for all study periods). The number of authors per article significantly increased for all radiologic subspecialties. The mean numbers of authors per article by country of origin are as follows: Italy, 8.3; Japan, 7.6; France, 7.5; Germany, 7.4; China, 7.3; Austria, 7.2; and South Korea, 6.8. These were significantly higher than the mean number of authors from Switzerland, which was 6.3. CONCLUSION: The number of authors significantly and consistently increased in two leading radiology journals over the past 2 decades.
Entities:
Keywords:
authorship; radiology and radiologists; research
Authors: Briget da Graca; Benjamin D Pollock; Teresa K Phan; Chris Carlisi; Tavia I Gonzalez Peña; Giovanni Filardo Journal: Mayo Clin Proc Innov Qual Outcomes Date: 2019-01-18
Authors: Jung Ui Hong; Jun Ho Kim; Kyung Hee Lee; Minkyung Lee; In Young Hyun; Soon Gu Cho; Yeo Ju Kim; Ha Young Lee; Ga Ram Kim Journal: Medicine (Baltimore) Date: 2019-05 Impact factor: 1.817