• Spine · Mar 2020

    Clinical Level of Evidence Presented at the Cervical Spine Research Society (CSRS) Annual Meeting Over 10 Years (2008-2017): A Systematic Review.

    • Nicholas W Eyrich, Daniel Liesman, Nicole A Pescatore, and Ilyas S Aleem.
    • University of Michigan Medical School, Ann Arbor, MI.
    • Spine. 2020 Mar 15; 45 (6): 407-413.

    Study DesignSystematic review.ObjectiveWe systematically reviewed the level of clinical evidence presented at Cervical Spine Research Society annual meetings from 2008 through 2017.Summary Of Background DataThe Cervical Spine Research Society is dedicated to advancing knowledge of the cervical spine to promote evidence-based care. Research presented at these meetings impacts clinical practice.MethodsA total of 774 paper abstracts presented at Cervical Spine Research Society (CSRS) annual meetings were independently assessed by two reviewers. Reviewers designated a clinical level of evidence (LOE) to each included abstract from level I to level IV based on criteria set forth by the Oxford Centre for Evidence-Based Medicine. Reviewer agreement was assessed using Cohens Kappa coefficient (k) and disagreements were discussed until a consensus was reached. Wilcoxon rank sum test was used to assess for differences in LOE grades. Chi-squared testing was used to assess nonrandom changes in level of evidence and in excluded studies.ResultsA total of 583 abstracts were included. Over the last 10 CSRS meetings, 5.15% of presentations were level I, 27.8% level II, 27.4% level III, and 39.6% level IV. The average LOE from 2008 to 2017 was 3.02 (median = 3). Additionally, 49.7% were therapeutic studies, 37.6% prognostic studies, and 12.7% diagnostic studies. When comparing the first 5 years (2008-2012) to the last 5 years (2013-2017), we observed a significant increase in Level II (P = 0.007) evidence and a corresponding decrease in level IV evidence (P < 0.001). The average LOE improved from 3.14 (2008-2012) to 2.91 (2013-2017); there was a significant improvement in LOE between the two periods (P = 0.001).ConclusionEmphasis on evidence-based medicine within cervical spine research has positively influenced the clinical level of evidence disseminated at CSRS annual meetings between 2008 and 2017. Continued focus on higher quality Level I studies is warranted.Level Of Evidence4.

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