Table 2.

Quality assessment of randomized controlled clinical trials

Study	Adequate sequence generation	Allocation concealment	Blinding	Incomplete outcome data	Selective outcome reporting	Other risk of bias	Overall risk bias
Hosgor et al. [16]	No	No	Unclear	Yes	Yes	Yes	High
Malekzadeh et al. [19]	Yes	Yes	Unclear	Yes	Yes	Yes	Low
Tatli et al. [15]	Yes	Yes	Unclear	Yes	Yes	Yes	Low