Drug-Coated versus Uncoated Balloon for Side Branch Protection in Coronary Bifurcation Lesions Treated with Provisional Stenting Using Drug-Eluting Stents: A Meta-analysis

Table 2

Quality evaluation of the included RCTs.

Study	Random sequence generation	Allocation concealment	Blinding of participants	Blinding of outcome assessment	Incomplete outcome data addressed	Selective reporting	Other sources of bias	Total
Zong 2018	Low	Unknown	Unknown	Unknown	Low	Low	Low	4
Jing 2020	Unknown	Low	Unknown	Unknown	Low	Low	Low	4
Bu 2021	Unknown	Unknown	Unknown	Unknown	Low	Low	Low	3
Zhang 2021	Low	Low	Unknown	Unknown	Low	Low	Low	5