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The majority of reporting guidelines are not developed with the Delphi method: a systematic review of reporting
Masahiro Banno1, Yasushi Tsujimoto2, Yuki Kataoka3
1Department of Psychiatry, Seichiryo Hospital, Tsurumai 4-16-27, Showa-ku, Nagoya 466-0064, Japan; Department of Psychiatry, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8560, Japan; Systematic Review Workshop Peer Support Group (SRWS-PSG), Japan.
Objectives:
Previous guidance of reporting guidelines recommends incorporating the Delphi method to integrate the opinions of experts for consensus when developing reporting guidelines. The purpose of this study was to clarify whether reporting guidelines typically use the Delphi method, what factors may be associated with the use of Delphi, and the reporting quality of Delphi.
Study Design And Setting:
We included all reporting guidelines (n = 244) in the Enhancing the QUAlity and Transparency of health Research (EQUATOR) Network published after January 1, 2011. We assessed the trends and factors associated with conducting Delphi and the reporting quality of Delphi against current reporting guidelines.
Results:
Of 244, 62 (25%) used Delphi for consensus building. The proportion of reporting guidelines that used Delphi was less than 10% in 2011 and 2012 and 29% in 2019. The year of publication, number of authors, and multiple and simultaneous publications were associated with the use of Delphi. The reporting quality of the Delphi method was moderate in most reporting guidelines developed with Delphi.
Conclusions:
The use of Delphi in reporting guidelines is insufficient. Users and reviewers should carefully appraise the consensus building in the guidelines.
Protocol And Registration:
We applied a prespecified protocol to conduct this study (Banno M, Tsujimoto Y, Kataoka Y. Reporting quality of the Delphi technique in reporting guidelines: a protocol for a systematic analysis of the EQUATOR Network Library. BMJ Open. 2019; 9:e024942). The study was registered in the University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR) (Trial registration number: UMIN000032685, URL: https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000037271).
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