News | Radiology Education | September 04, 2020

Radiology Research Funding Has Increased But Still No Association with Citation Rate

While AJR articles were more frequently unfunded, and Radiology articles were more often funded, citation rate was not different between funded vs. unfunded; moreover, funding was not significantly associated with citations

While AJR articles were more frequently unfunded, and Radiology articles were more often funded, citation rate was not different between funded vs. unfunded; moreover, funding was not significantly associated with citations

Note: Except where otherwise indicated, data are number (%) of research articles. aSignificance lost after adjustment for multiple testing using false-positive rate control. bStatistically significant. cApplies to Radiology and European Radiology articles only. Courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

September 4, 2020 — According to ARRS' American Journal of Roentgenology (AJR), nearly half (47.7%) of the research articles published in major radiology journals declared funding — a proportion that has increased from 17% of articles in 1994 and 26.9% published between 2001 and 2010.

"Most funded articles received support from federal sponsors or nonprofit foundations, whereas only a minority of funded articles were supported by private industry," explained first author Rayan H.M. Alkhawtani from the department of radiology, nuclear medicine, and molecular imaging at University Medical Center Groningen in The Netherlands.

And as Alkhawtani et al. concluded, "funding was not associated with a higher citation rate."

The Dutch team included a total of 600 consecutive original research articles published between January and October 2016 in three large journals: AJR, Radiology and European Radiology. Using linear regression analysis to ascertain the association between research funding and citation rate, adjustments were made for the following seven factors:

  • journal,
  • continent of origin of first author,
  • subspecialty,
  • study findings included in article title,
  • number of authors,
  • immediate open access publication,
  • time since publication online.

Finding that funding was declared in 286 of 600 (47.7%) included articles, the authors of this AJR "Original Research" article identified the six most significant funding sources:

  • federal sponsorship (29.4%),
  • nonprofit foundation (16.4%),
  • both federal sponsorship and nonprofit foundation (16.1%),
  • private industry (10.1%),
  • intramural institutional research funding (9.8%),
  • other combinations of funding sources (18.2%).

"Articles with first authors whose continent of origin was Europe (p < 0.001), vascular and interventional radiology articles (p < 0.001), and articles published in AJR (p < 0.001) were significantly more frequently unfunded than funded," Alkhawtani and colleagues noted.

Meanwhile, the team noted that articles published in Radiology were significantly more frequently funded (p < 0.001).

Ultimately, citation rate was not significantly different between funded and unfunded articles (p = 0.166), and in the adjusted linear regression analysis, funding was not significantly associated with citation rate (β coefficient, ?0.31; 95% CI, ?3.27 to 2.66; p = 0.838).

For more information: www.arrs.org

Related Content

Lung and respiratory health pioneer paves way for more precise care of complex respiratory conditions
News | Artificial Intelligence | September 25, 2020
September 25, 2020 — VIDA Diagnostics, Inc. announced that it has received 510(k) clearance from the Food and Drug Ad
RADLogics AI-Powered solution in use: chest X-ray of COVID-19 positive case with heatmap key image.

RADLogics AI-Powered solution in use: chest X-ray of COVID-19 positive case with heatmap key image.

News | Artificial Intelligence | September 23, 2020
September 23, 2020 — RADLogics
The cartilage in this MRI scan of a knee is colorized to show greater contrast between shades of gray.

The cartilage in this MRI scan of a knee is colorized to show greater contrast between shades of gray. Image courtesy of Kundu et al. (2020) PNAS

News | Artificial Intelligence | September 22, 2020
September 22, 2020 — Researchers at the University of Pitts...
New research from King's College London has found that COVID-19 may be diagnosed on the same emergency scans intended to diagnose stroke.

Canon Medical Systems

News | Cardiac Imaging | September 22, 2020
September 22, 2020 — New research from King's College London has
Philips Azurion Lung Edition supports high precision diagnosis and minimally invasive therapy in one room
News | Lung Imaging | September 21, 2020
September 21, 2020 — Philips introduced...
According to a new report published by P&S Intelligence, the global radiotherapy market is expected to expand from $7.2M in 2019 to $17M by 2030.

Image courtesy of Accuray

Feature | Radiation Therapy | September 21, 2020 | By Melinda Taschetta-Millane
According to a...
A new report, Magnetic Resonance Imaging Equipment Market Size, Share & Industry Analysis, conducted by Fortune Business Insights, states that the magnetic resonance imaging (MRI) equipment market reached $7.24 billion in 2019 and is projected to reach $11.36 billion by 2027

Image courtesy of Siemens Healthineers

Feature | Magnetic Resonance Imaging (MRI) | September 21, 2020 | By Melinda Taschetta-Millane
A new report,...
Of all the buzzwords one would have guessed would dominate 2020, few expected it to be “virtual”. We have been virtualizing various aspects of our lives for many years, but the circumstances of this one has moved almost all of our lives into the virtual realm.

Getty Images

Feature | Radiology Education | September 18, 2020 | By Jef Williams
Of all the buzzwords one would have guessed would dominate 2020, few expected it to be “virtual”.