Systematic reviews in dentistry: Current status, epidemiological and reporting characteristics

Ref ID 40
First Author R. Bassani
Journal JOURNAL OF DENTISTRY
Year Of Publishing 2019
URL https://pubmed.ncbi.nlm.nih.gov/30716451/
Keywords • Dentistry
• Grey literature
• Publication bias
• Risk of bias
• Transparency
Problem(s) • Interpreted without considering certainty or overall quality of the evidence base
• Inconclusive or lack of recommendations
• Risk of bias not incorporated into conclusions of review
• Funding or sponsor of systematic review not reported
• Reasons for excluding potentially eligible studies not provided
• Grey literature excluded
• Poor consideration of publication bias
• No quality assessment undertaken or reported
Number of systematic reviews included 495
Summary of Findings Only a small proportion of the 495 included systematic reviews in dentistry (44 (19%)) reported a GRADE assessment of the body of evidence. Most of the systematic reviews (296 (59.8%)) did not note the existence of limitations, whereas the report of limitations at the study and review levels was seen in 95 systematic reviews (19.2%). Further, the incorporation of information with regards to study risk-of-bias/quality/ limitations in the Abstract conclusions section was only seen in 49 systematic reviews (19.5%). The source of funding not was described in 192 (38.8%) of systematic reviews, and 181 (36.6%) reported that the authors had no funding. 308/478 (64.4%) of included reviews noted the reasons for exclusion of studies in a PRISMA-like flow diagram or text/table. However, the number of systematic reviews that did not report reasons for exclusion of full-text articles was also high (158 (33%)). Systematic reviews that reported including grey literature were infrequent (90/491 (18.3%)). More than a third (364 (73.4%)) commented that publication bias was not assessed and just 85 (17.2%) declared that publication bias was assessed.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? N/A
Are the methods of the article described in enough detail to replicate the study? Yes