Guideline assessment project II: statistical calibration informed the development of an AGREE II extension for surgical guidelines

Tsokani, Sofia, Antoniou, Stavros A., Moustaki, Irini ORCID: 0000-0001-8371-1251, López-Cano, Manuel, Antoniou, George A., Flórez, Ivan D., Silecchia, Gianfranco, Markar, Sheraz, Stefanidis, Dimitrios, Zanninotto, Giovanni, Francis, Nader K., Hanna, George H., Morales-Conde, Salvador, Bonjer, Hendrik Jaap, Brouwers, Melissa C. and Mavridis, Dimitrios (2021) Guideline assessment project II: statistical calibration informed the development of an AGREE II extension for surgical guidelines. Surgical Endoscopy, 35 (8). 4061 – 4068. ISSN 0930-2794

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Abstract

Objective: To inform the development of an AGREE II extension specifically tailored for surgical guidelines. Summary background data: AGREE II was designed to inform the development, reporting, and appraisal of clinical practice guidelines. Previous research has suggested substantial room for improvement of the quality of surgical guidelines. Methods: A previously published search in MEDLINE for clinical practice guidelines published by surgical scientific organizations with an international scope between 2008 and 2017, resulted in a total of 67 guidelines. The quality of these guidelines was assessed using AGREE II. We performed a series of statistical analyses (reliability, correlation and Factor Analysis, Item Response Theory) with the objective to calibrate AGREE II for use specifically in surgical guidelines. Results: Reliability/correlation/factor analysis and Item Response Theory produced similar results and suggested that a structure of 5 domains, instead of 6 domains of the original instrument, might be more appropriate. Furthermore, exclusion and re-arrangement of items to other domains was found to increase the reliability of AGREE II when applied in surgical guidelines. Conclusions: The findings of this study suggest that statistical calibration of AGREE II might improve the development, reporting, and appraisal of surgical guidelines.

Item Type:	Article
Official URL:	https://www.springer.com/journal/464
Additional Information:	© 2021 The Authors, under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Divisions:	Statistics
Subjects:	R Medicine > RA Public aspects of medicine
Date Deposited:	08 Jul 2021 14:24
Last Modified:	28 Oct 2025 19:00
URI:	http://eprints.lse.ac.uk/id/eprint/111007

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