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 Transparency
Grey literature
Dentistry
Publication bias
Risk of bias
Problem(s) No quality assessment undertaken or reported
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
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? Not Applicable
Are the methods of the article described in enough detail to replicate the study? Yes