Synthesis methods other than meta-analysis were commonly used but seldom specified: survey of systematic reviews

Ref ID 859
First Author M.S. Cumpston
Journal JOURNAL OF CLINICAL EPIDEMIOLOGY
Year Of Publishing 2023
URL https://www.sciencedirect.com/science/article/pii/S0895435623000148?via%3Dihub
Keywords • Non-Cochrane reviews
• Pre-specification
• Low reporting quality
• Statistical
• Reproducibility
Problem(s) • Methods not described to enable replication
• Lack of prespecification in eligibility criteria
• Low reporting or methodological quality (OTHER GUIDANCE)
Article Type Empirical
Article Subtype Cross-sectional survey/Methodological systematic review
First Author Country Australia
Aim To examine the specification and use of summary and statistical synthesis methods, focusing on synthesis methods other than meta-analysis.
Level of Investigation Descriptive
Summary of Findings From 100 randomly sampled systematic reviews of public health and health systems interventions published in 2018 from the Health Evidence and Health Systems Evidence databases. Most (78%) of the included systematic reviews specified (that is, defined or discussed in the text) meta-analysis. Other synthesis methods were rarely specified (5/100). In five systematic reviews, the authors stated that they did not intend to statistically synthesize results, and in 15 no information about synthesis methods was specified.
Number of systematic reviews included 100
Number of eligible systematic reviews assessed 166
Treatment impacted No
Treatment impacted description
Interpretation impacted Not Applicable
Interpretation impacted description