Table 3.

Risk of bias assessment of included studies.

Study (first author, year)	Bias from radomization process	Bias due to deviations from intended interventions	Bias due to missing outcome data	Bias in menasurement of the outcomes	Bias in selection of the reported result	Overall bias
Dawood 2022	Low	Low	Low	Some concerns	Some concerns	High
Low 2014	Low	Low	Low	Low	Some concerns	Some concerns
Padiyar 2018	Low	Low	Low	Low	Some concerns	Some concerns
Tripathy 2019	Low	Low	Low	Low	Some concerns	Some concerns
Vakil 2021	Low	Low	Low	Low	Some concerns	Some concerns
Wang 2020	Low	Low	Low	Low	Some concerns	Some concerns
Wiikemann 2002	Low	Low	Low	Low	Some concerns	Some concerns