Efficacy of hybrid minimally invasive esophagectomy vs open esophagectomy for esophageal cancer: A meta-analysis

Table 4 Quality assessment of the eligible studies: Risk bias of Cochrane Collaboration tool for randomized controlled trials

Ref.	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias
Paireder et al[9]	Low risk	High risk	Unclear risk	Unclear risk	Low risk	Low risk	Unclear risk
Mariette et al[8]	Low risk	Low risk	Low risk	High risk	Unclear risk	Unclear risk	Unclear risk