TABLE 1.

Physiotherapy evidence database (PEDro) scores of included studies.

Study	Eligibility criteria	Random allocation	Concealed allocation	Groups similar at baseline	Participant blinding	Therapist blinding	Assessor blinding	<15% dropouts	Intention to treat analysis	Between group difference reported	Point estimate and variability reported	Total (0–10)
Akaltun et al. (30)	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	No	7
Alayat et al. (31)	Yes	Yes	Yes	Yes	No	No	No	Yes	No	Yes	Yes	6
Angelova and Ilieva (32)	Yes	Yes	No	Yes	Yes	No	No	Yes	Yes	Yes	Yes	7
Delkhosh et al. (33)	Yes	Yes	No	Yes	Yes	No	No	No	No	Yes	Yes	5
Gworys et al. (34)	Yes	Yes	No	Yes	No	No	No	Yes	No	Yes	Yes	5
Kheshie et al. (35)	Yes	Yes	Yes	Yes	Yes	No	No	Yes	No	Yes	Yes	7
Kim et al. (36)	Yes	Yes	No	Yes	No	No	No	Yes	No	Yes	Yes	5
Kim et al. (37)	Yes	Yes	No	Yes	Yes	Yes	No	No	No	Yes	No	5
Mostafa et al. (38)	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	No	Yes	8
Nazari et al. (39)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	Yes	Yes	8