Table 4. Risk of bias in the included studies.

Authors name	Selection Bias   Random sequence generation	Allocation Concealment	Reporting bias	Others	Performance bias   Blinding participants and personnel	Blinding Outcome	Attrition bias
Bodhale P et al., [11]	Low risk	Low risk	Low risk	Low risk	Low risk	Unclear	High risk
Mounissamy A et al., [12]	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk
Almulhim B et al., [14]	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk
Khanduri N et al., [15]	Low risk	Unclear	Low risk	Low risk	Low risk	Unclear	Low risk
Kumar G et al., 2019 [13]	Low risk	Low risk	Low risk	Low risk	Unclear	Unclear	Low risk
Alshammary F et al., 2019 [16]	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk