Fig. 1

Literature screening process and quality assessment results. A Flowchart of the literature inclusion process. B Summary of the risk of bias assessment for included studies. Green indicates low risk, yellow indicates unclear risk, and red indicates high risk. The biases assessed include random sequence generation (selection bias), allocation concealment (selection bias), blinding of participants and personnel (performance bias), blinding of outcome data (detection bias), incomplete outcome data (attrition bias), selective reporting (reporting bias), and other biases