Survey of Cochrane protocols found methods for data extraction from figures not mentioned or unclear

Ref ID 608
First Author K. Vucic
Journal JOURNAL OF CLINICAL EPIDEMIOLOGY
Year Of Publishing 2015
URL https://www.jclinepi.com/article/S0895-4356(14)00473-9/fulltext
Keywords • Cochrane
• Protocols
• General medical
• Pre-specification
Problem(s) • Lack of prespecification in eligibility criteria
Article Type Empirical
Article Subtype Cross-sectional survey/Methodological systematic review
First Author Country Croatia
Aim To assess a selection of Cochrane systematic review protocols for whether authors state their intentions regarding data extraction from figures of included trials in their systematic reviews, where quantitative data are not explicitly stated in the text.
Level of Investigation Descriptive
Summary of Findings Only 33 (5.6%) of the 589 included Cochrane systematic review protocols mentioned or anticipated data extraction from figures in Methods section.
Number of systematic reviews included 589
Number of eligible systematic reviews assessed 723
Treatment impacted No
Treatment impacted description
Interpretation impacted Not Applicable
Interpretation impacted description