Quality Assessment of Systematic Review of the Bariatric Surgery for Diabetes Mellitus

Ref ID	116
First Author	X. Jin
Journal	JOURNAL OF DIABETES RESEARCH
Year Of Publishing	2019
URL	https://onlinelibrary.wiley.com/doi/10.1155/2019/9541638
Keywords	• Surgery • Transparency • Disclosure • Protocols • Grey literature • Publication bias
Problem(s)	• Conflict of interest statement or disclosures for review authors missing • No registered or published protocol • Grey literature excluded • Poor consideration of publication bias • Conflicts of interest or funding of included studies not assessed • Low methodological (AMSTAR) quality • Funding or sponsor of systematic review not reported
Number of systematic reviews included	64
Summary of Findings	The average AMSTAR score in the included 64 systematic reviews was 7:4 ± 1.7. Study protocols not being registered, grey literature not retrieved, incorporation of grey literature as exclusion criteria, and failure to evaluate publication bias and report a conflict of interest were the main causes of low AMSTAR scores.
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