Comparison between laparoscopic uncut Roux-en-Y and Billroth II with Braun anastomosis after distal gastrectomy: A meta-analysis

Table 2 Results of risk of bias assessment (randomised controlled trials)

Ref.	Sequence generation	Allocation concealment	Blind of participant and personnel	Blind of assessment	Outcome of incomplete data	Selective report	Other bias
Chen[30], 2018	Low	Unclear	High	Unclear	Low	Unclear	Unclear
Ren et al[31], 2020	Low	Unclear	Unclear	Unclear	Low	Unclear	Unclear
Wang et al[34], 2021	Low	Low	Low	Unclear	Low	Low	Unclear

The level of bias was determined as follows: “High” indicating a risk of bias; “Unclear” indicating an uncertain risk of bias; and “Low” indicating no risk of bias.