One-anastomosis gastric bypass vs sleeve gastrectomy for diabetes remission and weight loss: A meta-analysis

Table 5 Risk of bias assessment of the included studies according to the Cochrane risk of bias tool for randomized controlled trials

Ref.	Selection bias1	Selection bias2	Performance bias	Attrition bias	Detection bias	Reporting bias	Overall bias
Abdelshafy et al[28]	Some concern	Low	Some concern	Low	Low	Some concern	Some concerns
Lee et al[30]	Some concern	Some concern	Low	Low	Low	High	Low
Jian et al[42]	Low	Low	High	Low	Some concern	Some concern	Some concerns
Ruiz-Tovar et al[47]	Low	Low	Some concerns	Some concerns	Some concerns	Low	Some concerns
Seetharamaiah et al[49]	Low	Some concerns	Some concerns	Some concerns	Some concerns	Low	Some concerns
Shivakumar et al[51]	Low	Low	Some concerns	Some concerns	Low	Low	Low

¹Random sequence generation bias.

²Allocation concealment.