Table 2.

Methodological Quality Evaluations of the Studies.

Tag of the article	criteria													Total (%)	Weakness Risk
	1	2	3	4	5	6	7	8	9	10	11	12	13
Alavi vd.,2017	B	B	E	B	B	B	E	E	E	E	E	E	H	6/13 (%46)	High
Cenkçi, 2017	E	E	E	B	B	B	E	E	E	E	E	E	H	9/13 (%69)	Average
Hamdamian vd.,2018	E	E	E	B	B	B	E	E	E	E	E	E	H	9/13 (%69)	Average
Tanvisut vd.,2018	E	E	E	E	B	B	E	E	E	E	E	E	H	10/13 (%88)	Average
Yazdkhasti & Pirak, 2016	E	E	E	E	B	B	E	E	E	E	E	E	H	10/13 (%88)	Average
Esmaelzadeh vd., 2018	E	E	E	H	B	E	E	E	E	E	E	E	H	10/13 (%88)	Average
Vakilian vd., 2018	E	E	E	B	B	B	E	E	E	E	E	E	H	9/13 (%69)	Average
Janula ve Singh, 2014	B	B	E	B	B	B	E	E	E	E	E	E	H	7/13 (%54)	High
Janula ve Singh, 2015	B	B	E	B	B	B	E	E	E	E	E	E	H	6/13 (%46)	High
Joseph ve Fernandes, 2013	B	B	E	B	B	B	E	E	E	E	E	E	H	6/13 (%46)	High
Kaviani vd.,2014(a)	B	E	E	B	B	B	E	E	E	E	E	E	H	8/13 (%61)	High
Kaviani vd.,2014(b)	B	E	E	B	B	B	E	E	E	E	E	E	H	8/13 (%61)	High
Lamadah ve Nomani, 2016	B	E	E	B	B	B	E	E	E	E	E	E	H	8/13 (%61)	High
Namazi vd.,2014	B	B	E	B	B	B	E	E	E	E	E	E	H	7/13 (%54)	High

*Note: Y = Yes; N = No; U = Uncertain; G = Not applicable; 1–13: Items from the checklist for randomized controlled trials created by the Joanna Briggs Institute