Table 1.

Study design quality assessment based on Physiotherapy Evidence Database Scale

Study	1	2	3	4	5	6	7	8	9	10	11	Total score
Arcolin et al26	X	X		X			X	X		X	X	6
Carvalho et al38,*	X	X	X	X				X	X	X	X	7
Combs et al27	X	X	X	X			X		X	X	X	7
Corcos et al28	X	X	X	X			X	X		X	X	7
Dibble et al29		X	X	X			X	X	X	X	X	8
Mateos-Toset et al30	X	X	X	X			X	X		X	X	7
Paul et al31	X	X	X	X			X	X	X	X	X	8
Ridgel et al33,*	X	X		X			X	X		X	X	6
Schlenstedt et al32		X		X			X		X	X	X	6
Shen and Mak34	X	X	X	X			X	X		X	X	7
Shen and Mak35	X	X		X			X	X	X	X	X	7
Shen and Mak36	X	X	X	X			X	X	X	X	X	8
Volpe et al37	X	X	X	X			X	X	X	X	X	8

Notes: PEDro criteria: 1, eligibility criteria (not used to calculate the PEDro score); 2, random allocation; 3, concealed allocation; 4, baseline comparability; 5, blind subjects; 6, blind therapists; 7, blind assessors; 8, adequate follow-up; 9, intention-to-treat analysis; 10, between-group comparisons; 11, point estimates and variability provided;

^*PEDro score attributed by the authors.

Abbreviation: PEDro, Physiotherapy Evidence Database.