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Published on: February 19, 2021
Updating the PRISMA reporting guideline for network meta-analysis: a scoping review
Areti Angeliki Veroniki1, Andrea C Tricco2, Daniella Rangira3
1Knowledge Translation Program, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, 209 Victoria Street, Toronto, Ontario, Canada; Institute for Health Policy, Management, and Evaluation, University of Toronto, 155 College Street, Toronto, Ontario, Canada; Center for Evidence Synthesis in Health, Department of Health Services, Policy, and Practice, Brown University School of Public Health, Providence, RI, USA.
This scoping review identifies 37 new reporting items to update the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for network meta-analysis (NMA). These updates aim to improve NMA transparency and trustworthiness.
Area of Science:
- Evidence synthesis methodologies
- Biostatistics and epidemiological research
Background:
- The 2015 Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for network meta-analysis (NMA) requires updating.
- Existing NMA reporting guidelines need enhancement for usability, completeness, and transparency for diverse audiences.
Purpose of the Study:
- To conduct the first scoping review for updating the PRISMA-NMA guideline.
- To align the updated guideline with PRISMA 2020 standards.
- To address critical reporting gaps in NMAs, including homogeneity, transitivity, intervention definition, and statistical modeling.
Main Methods:
- Protocol registered on Open Science Framework and published in JBI Evidence Synthesis.
- Comprehensive search of multiple databases and gray literature.
- Duplicate screening and data extraction focusing on NMA reporting recommendations.
Main Results:
- Sixty-one studies met eligibility criteria (23 guidance documents, 38 overviews of reviews).
- Identified 37 additional reporting items relevant to NMAs.
- These items will inform the Delphi consensus process for the PRISMA-NMA update.
Conclusions:
- There is an urgent need to update the PRISMA-NMA guideline.
- Addressing reporting gaps and incorporating methodological advances is crucial.
- The update will enhance transparency, reproducibility, and trustworthiness of NMAs.
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