Table 3.

Bias Assessment Judgment for Each Domain by Study

Bias Domain	Dos Santos et al, 202170	Glue et al, 201762	Glue et al, 202064	Glue et al, 201863	Taylor et al, 201868	Gasser et al, 201467	Gasser et al, 201566	Wolfson et al, 202065	Grob et al, 201169
Random sequence generation (selection bias)	Low	High	Unclear	High	Low	Unclear	Unclear	Low	Unclear
Allocation concealment (selection bias)	Low	High	Low	High	Low	Low	Low	Low	Low
Blinding of participants and researchers (performance bias)	High	High	High	High	High	High	High	High	High
Blinding of outcome assessment (detection bias)	High	High	High	High	High	High	High	High	High
Incomplete outcome data (attrition bias)	Low	Low	Low	Low	Low	Low	Low	Low	High
Selective reporting (reporting bias)	Low	Low	Low	Low	Low	Low	Low	Low	Low
Other bias	Unclear	Unclear	Unclear	Unclear	Unclear	Unclear	Unclear	Unclear	Unclear