Table 2.

PEDro scores of included studies.

Study	Random allocation	Concealed allocation	Groups similar at baseline	Participant blinding	Therapist blinding	Assessor blinding	Adequate follow-up	Intention-to-treat analysis	Between-group difference reported	Point estimate and variability reported	Total (0–10)
Chan et al. (2004)21	√						√		√	√	4
Karabay et al. (2012)22	√		√			√	√		√	√	6
Karabay et. (2016)23	√		√				√		√	√	5
Linden et al. (2003)24	√		√			√	√	√	√	√	7
Mohanty et al. (2016)14	√		√			√	√		√	√	6
Park et al. (2001)25	√		√			√	√		√	√	6
Median (range)											6 (4–7)