Efficacy and safety of distal radial approach for cardiac catheterization: A systematic review and meta-analysis

Table 2 Quality scores for the studies eligible for the evaluation of the successful cannulation rate

Ref.	Risk of bias 2 tool assessment
	Bias arising from the randomization process	Bias due to deviations from intended interventions	Bias due to missing outcome data	Bias in measurement of the outcome	Bias in selection of the reported results	Overall risk of bias
Mokbel et al[26]	Some concerns	Low	Low	Low	Some concerns	Some concerns
Koutouzis et al[25]	Low	Low	Low	Low	Some concerns	Some concerns
Vefalı et al[16]	Some concerns	Low	Low	Low	Some concerns	Some concerns