Efficacy and safety of regional blocks and multimodal analgesia in psychiatric patients at risk of opioid misuse: A systematic review

Table 2 Risk of bias assessment for randomized controlled trials

Ref.	Randomization	Allocation concealment	Blinding participants	Blinding assessors	Incomplete data	Selective reporting	Overall risk
Ibrahim et al[11]	Low	Low	High	Low	Low	Low	Some concerns
Accurso et al[12]	Low	Low	High	Low	Low	Low	Some concerns
Geng et al[14]	Low	Low	Some concerns	Low	Low	Low	Some concerns
Wang et al[15]	Low	Low	Low	Low	Low	Low	Low
Yurttas et al[16]	Low	Low	Low	Low	Low	Low	Low
Sakata et al[17]	Low	Low	Low	Low	Some concerns	Low	Some concerns
Tsaousi et al[13]	Low	Low	Some concerns	Low	Low	Low	Some concerns
de Dios et al[19]	Low	Some concerns	High	Low	Low	Low	Some concerns
Sullivan et al[20]	Low	Low	High	Low	Some concerns	Low	Some concerns