One-anastomosis gastric bypass vs sleeve gastrectomy for complications, perioperative status, and quality of life: Meta-analysis

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

Ref.	Selection bias1	Selection bias2	Performance bias	Attrition bias	Detection bias	Reporting bias	Overall bias
Roushdy et al[37], 2020	Low	Some concerns	Some concerns	Some concerns	Some concerns	Low	Some concerns
Seetharamaiah et al[46], 2017	Low	Some concerns	Some concerns	Some concerns	Some concerns	Low	Some concerns
Shivakumar et al[47], 2018	Low	Low	Some concerns	Some concerns	Low	Low	Low
Jain et al[48], 2021	Low	Low	High	Low	Some concern	Some concern	Some concerns
Vitiello et al[50], 2023	Low	Low	High	High	Low	Low	low

¹Random sequence generation.

²Allocation concealment.