Linguistic analysis of plain language summaries and corresponding scientific summaries of Cochrane systematic reviews about oncology interventions

Ref ID 911
First Author J. Suto
Journal CANCER MEDICINE
Year Of Publishing 2023
URL https://onlinelibrary.wiley.com/doi/10.1002/cam4.5825
Keywords • Cochrane
• Oncology
• Language
• Abstract / summary
Problem(s) • Unwieldy/ difficult to read
• Inconclusive or lack of recommendations
• Weaknesses identified in some Cochrane reviews
Article Type Empirical
Article Subtype Cross-sectional survey/Methodological systematic review
First Author Country Croatia
Aim To assess the language characteristics of Plain Language Summaries of Cochrane systematic reviews of oncology interventions in comparison with corresponding Cochrane scientific abstracts (SAs).
Level of Investigation Descriptive
Summary of Findings From 275 plain language summaries of the included Cochrane systematic reviews of oncology interventions available in the Cochrane Database of Systematic Reviews up to Feb 2019. The overall median Simple Measure of Gobbledygook (SMOG) index for 275 PLSs was 13.0 (95% confidence interval [CI] 12.8–13.3). Readability scores did not differ across Cochrane Review Groups. Scientific abstracts had a higher readability index than the corresponding Plain Language Summaries (median = 16.6, 95% CI = 16.4–16.8). Regarding linguistic characteristics, Plain Language Summaries were shorter than scientific abstracts, with less use of analytical tone, but more use of a positive emotional tone and authenticity. Overall, the ‘Unclear’ category of conclusiveness was the most common among all Plain Language Summaries.
Number of systematic reviews included 275
Number of eligible systematic reviews assessed 4403
Treatment impacted No
Treatment impacted description
Interpretation impacted Not Applicable
Interpretation impacted description