Table 4.

Quality of the trials and Cochrane risk bias [43].

	Random Sequence Generation	Allocation Concealment	Blinding of Participant and Personnel	Blinding of Outcome Assessment	Incomplete Outcome Data	Selective Reporting	Other Bias
Rahmani, 2016 [23]	+	+	+	+	+	+	+
Kelardeh, 2017 [24]	+/−	+	+	+	+	+	+/−
Navekar, 2017 [25]	+	+	+	+	+	+	+
Chashmniam, 2019 [26]	+	+	+	+	+	+	+
Mirhafez, 2019 [27]	+/−	+	+	+	+	+	+
Hariri, 2020 [28]	+	+	+	+	+	+	+
Kelardeh, 2020 [29]	+/−	+	+	+	+	+	+/−
Saberi-Karimian, 2020 [30]	+	+	+	+	+	+	+
Panahi, 2016 [31]	+/−	+	−	−	+	+	+
Panahi, 2017 [32]	+	+	+	+	+	+	+
Jazayeri-Tehrani, 2019 [33]	+/−	+	+	+	+	+	+
Saadati, 2019 (a) [34]	+	+	+	+	+	+	+
Saadati, 2019 (b) [35]	+	+	+	+	+	+	+
Cicero, 2020 [36]	+	+	+	+	+	+	+

+ Low risk of bias. +/− Unclear risk of bias. − High risk of bias.