Intensive vs non-intensive statin pretreatment before percutaneous coronary intervention in Chinese patients: A meta-analysis of randomized controlled trials

Table 3 Assessment of randomized controlled trials

Ref.	Randomization sequence generation	Allocation concealment	Blinding of participants, personnel and outcome assessors	Incomplete outcome data	Selective reporting	Other sources of bias
Liu et al[10], 2016	Low risk	Low risk	High risk	Unclear risk	Unclear risk	Unclear risk
Jiao et al[11], 2015	Unclear risk	Unclear risk	Unclear risk	High risk	Unclear risk	Unclear risk
Jiao et al[12], 2015	Low risk	Low risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk
Zheng et al[7], 2015	Unclear risk	Unclear risk	High risk	Low risk	Low risk	Unclear risk
Xie et al[13], 2014	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk
Luo et al[14], 2013	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk
Wang et al[15], 2013	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk	Unclear risk
Li et al[16], 2013	Low risk	Low risk	Low risk	Unclear risk	Unclear risk	Unclear risk
Gao et al[17], 2012	Unclear risk	Unclear risk	High risk	Unclear risk	Unclear risk	Unclear risk
Li et al[18], 2012	Unclear risk	Unclear risk	Low risk	Unclear risk	Unclear risk	Unclear risk
Yu et al[19], 2011	Unclear risk	Unclear risk	Unclear risk	High risk	Unclear risk	Unclear risk