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Epidemiology of systematic reviews in imaging journals: evaluation of publication trends and sustainability?

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Title: Epidemiology of systematic reviews in imaging journals: evaluation of publication trends and sustainability?
Authors: Alabousi, M.1, Alabousi, A.1,2, McGrath, T. A.3, Cobey, K. D.4,5,6,7, Budhram, B.3, Frank, R. A.3, Nguyen, F.3, Salameh, J. P.5, Dehmoobad Sharifabadi, A.3, McInnes, M. D. F.8 mmcinnes@toh.on.ca
Source: European Radiology. Feb2019, Vol. 29 Issue 2, p517-526. 10p. 1 Diagram, 4 Charts, 2 Graphs.
Subjects: Magnetic resonance imaging, Meta-analysis, Medical care, Epidemiology, Google Scholar (Web resource)
Abstract: Purpose: To evaluate the epidemiology of systematic reviews (SRs) published in imaging journals.Methods: A MEDLINE search identified SRs published in imaging journals from 1 January 2000-31 December 2016. Articles retrieved were screened against inclusion criteria. Demographic and methodological characteristics were extracted from studies. Temporal trends were evaluated using linear regression and Pearson's correlation coefficients.Results: 921 SRs were included that reported on 27,435 primary studies, 85,276,484 patients and were cited 26,961 times. The SR publication rate increased 23-fold (r=0.92, p<0.001) while the proportion of SRs to non-SRs increased 13-fold (r = 0.94, p<0.001) from 2000 (0.10%) to 2016 (1.33%). Diagnostic test accuracy (DTA) SRs were most frequent (46.5%) followed by therapeutic SRs (16.6%). Most SRs did not report funding status (54.2%). The median author team size was five; this increased over time (r=0.20, p<0.001). Of the studies, 67.3% included an imaging specialist co-author; this decreased over time (r=-0.57, p=0.017). Most SRs included a meta-analysis (69.6%). Journal impact factor positively correlated with SR publication rates (r=0.54, p<0.001). Magnetic resonance imaging (MRI) and 'vascular and interventional radiology' were the most frequently studied imaging modality and subspecialty, respectively. The USA, UK, China, Netherlands and Canada were the top five publishing countries.Conclusions: The SR publication rate is increasing rapidly compared with the rate of growth of non-SRs; however, they still make up just over 1% of all studies. Authors, reviewers and editors should be aware of methodological and reporting standards specific to imaging systematic reviews including those for DTA and individual patient data.Key Points: • Systematic review publication rate has increased 23-fold from 2000-2016. • The proportion of systematic reviews to non-systematic reviews has increased 13-fold. • The USA, UK and China are the most frequent published countries; those from the USA and China are increasing the most rapidly. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Epidemiology of systematic reviews in imaging journals: evaluation of publication trends and sustainability?
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Radiology%22&quot;&gt;European Radiology&lt;/searchLink&gt;. Feb2019, Vol. 29 Issue 2, p517-526. 10p. 1 Diagram, 4 Charts, 2 Graphs.
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  Data: &lt;bold&gt;Purpose: &lt;/bold&gt;To evaluate the epidemiology of systematic reviews (SRs) published in imaging journals.&lt;bold&gt;Methods: &lt;/bold&gt;A MEDLINE search identified SRs published in imaging journals from 1 January 2000-31 December 2016. Articles retrieved were screened against inclusion criteria. Demographic and methodological characteristics were extracted from studies. Temporal trends were evaluated using linear regression and Pearson&#39;s correlation coefficients.&lt;bold&gt;Results: &lt;/bold&gt;921 SRs were included that reported on 27,435 primary studies, 85,276,484 patients and were cited 26,961 times. The SR publication rate increased 23-fold (r=0.92, p&lt;0.001) while the proportion of SRs to non-SRs increased 13-fold (r = 0.94, p&lt;0.001) from 2000 (0.10%) to 2016 (1.33%). Diagnostic test accuracy (DTA) SRs were most frequent (46.5%) followed by therapeutic SRs (16.6%). Most SRs did not report funding status (54.2%). The median author team size was five; this increased over time (r=0.20, p&lt;0.001). Of the studies, 67.3% included an imaging specialist co-author; this decreased over time (r=-0.57, p=0.017). Most SRs included a meta-analysis (69.6%). Journal impact factor positively correlated with SR publication rates (r=0.54, p&lt;0.001). Magnetic resonance imaging (MRI) and &#39;vascular and interventional radiology&#39; were the most frequently studied imaging modality and subspecialty, respectively. The USA, UK, China, Netherlands and Canada were the top five publishing countries.&lt;bold&gt;Conclusions: &lt;/bold&gt;The SR publication rate is increasing rapidly compared with the rate of growth of non-SRs; however, they still make up just over 1% of all studies. Authors, reviewers and editors should be aware of methodological and reporting standards specific to imaging systematic reviews including those for DTA and individual patient data.&lt;bold&gt;Key Points: &lt;/bold&gt;• Systematic review publication rate has increased 23-fold from 2000-2016. • The proportion of systematic reviews to non-systematic reviews has increased 13-fold. • The USA, UK and China are the most frequent published countries; those from the USA and China are increasing the most rapidly. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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