Table 2. Risk of bias assessment.

Trial Name	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other bias	Sample size calculation
FARMI (16)	Unclear risk	Unclear risk	High risk	High risk	Low risk	Low risk	Low risk	No
Gan et al. (17)	Unclear risk	Unclear risk	High risk	High risk	Low risk	Low risk	Low risk	No
Hou et al. (18)	Unclear risk	Unclear risk	High risk	High risk	Low risk	Low risk	Low risk	No
Mann et al. (19)	Unclear risk	Unclear risk	High risk	High risk	Low risk	Low risk	High risk	No
RADIAL-AMI (20)	Low risk	Low risk	High risk	High risk	Low risk	Low risk	Low risk	Yes
RADIAMI (21)	High risk	High risk	High risk	High risk	Low risk	Low risk	Low risk	No
RADIAMI II (22)	High risk	High risk	High risk	High risk	Low risk	Low risk	Low risk	No
RIFLE-STEACS (23)	Low risk	Low risk	High risk	Low risk	Low risk	Low risk	Low risk	Yes
RIVAL (24)	Low risk	High risk	High risk	Low risk	Low risk	Low risk	Low risk	Yes
TEMPURA (25)	Unclear risk	Unclear risk	High risk	High risk	Low risk	Low risk	Low risk	Yes
Wang et al. (26)	Low risk	Low risk	High risk	High risk	Low risk	Low risk	Low risk	Yes