Causal language use in systematic reviews of observational studies is often inconsistent with intent: a systematic survey

Ref ID 869
First Author M.A. Han
Journal JOURNAL OF CLINICAL EPIDEMIOLOGY
Year Of Publishing 2022
URL https://www.sciencedirect.com/science/article/pii/S0895435622001123?via%3Dihub
Keywords • Inference
• Language
• Observational studies
• Non-Cochrane reviews
Problem(s) • Low reporting or methodological quality (OTHER GUIDANCE)
• Incorrect interpretation or statistical inference error from meta-analysis
Article Type Empirical
Article Subtype Cross-sectional survey/Methodological systematic review
First Author Country Republic of Korea
Aim To systematically evaluate causal language use in systematic reviews of observational studies and explore the relation between language use and the intent of the investigation
Level of Investigation Descriptive
Summary of Findings From 199 included reviews of observational studies randomly selected from those indexed in EMBASE, MEDLINE, and Epistemonikos in 2019. 56.8% had causal intent. Systematic reviews with causal intent were more likely to investigate therapeutic clinical intervention (33.6% vs. 12.8%). Although 78.8% of those with causal intent used causal language in one or more sections of the title, abstract, or main text, only 4.4% consistently used causal language throughout the manuscript, and 21.2% did not use causal language at all.
Number of systematic reviews included 199
Number of eligible systematic reviews assessed 12971
Treatment impacted No
Treatment impacted description
Interpretation impacted Not Applicable
Interpretation impacted description