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Updated: Dec 7, 2025
A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
An algorithm provided as initial guidance for reporting registry records and published protocols in systematic
Julia Bidonde1, Jose F Meneses-Echavez2, Angela J Busch3
1Division for Health Services, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403 Oslo, Norway; York Health Economic Consortium, Enterprise House, Innovation Way, University of York, York YO10 5NQ, United Kingdom; School of Rehabilitation Science, University of Saskatchewan, Health Sciences Building, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada.
Objective:
We aim to synthesize the available guidance with existing practices by Cochrane reviewers to generate an algorithm as a starting point in assisting reviewers reporting of registry records and published protocols (TRRs/PPs) use in systematic reviews of interventions.
Study Design:
We used existing guidance from major review bodies, assessed the current reporting of TRRs/PPs use in a sample of Cochrane reviews, and engaged in critical analysis. Independent reviewers identified and extracted textual excerpts reporting the use of trial registry records and published protocols and codes following a systematic review framework. Based on these elements, and our initial research, we created an algorithm/graphical aid to visualize initial direction.
Results:
We included 166 Cochrane systematic reviews published between August 2015 and 2016 from 48 review groups. Review authors' terminology (e.g., ongoing, terminated) varied between and within reviews. Reporting practices were diverse and inconsistent.
Conclusions:
This is a timely investigation in an era where evidence synthesis informs health and health care decisions. Our proposed algorithm provides initial direction to systematize the reporting of TRR/PP use. We hope that the algorithm generates further discussion to enhance the transparency of TRR/PP reporting and methodological research into the complexities of using protocols in systematic reviews of interventions.
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