Systematic review comparing endoscopic, percutaneous and surgical pancreatic pseudocyst drainage

Table 3 Methodological summary of the risk of bias of the included randomized controlled trials

	Random sequence generation	Allocation concealment	Blinding	Incomplete outcome data	Other bias
Varadarajulu et al[8]	Low risk	Low risk	High risk	Low risk	Unclear risk
Park et al[11]	Low risk	Unclear risk	High risk	Low risk	High risk
Varadarajulu et al[12]	Low risk	Unclear risk	High risk	Low risk	Low risk

Assessment of the risk of bias was according to principles of the Cochrane Handbook for systemic reviews of interventions version 5.1.