Table 2.

Summary of methodological quality based on PEDro scale.

	1	2	3	4	5	6	7	8	9	10	11	Total	Rating
Kim et al., 202139	V	V		V				V	V	V	V	6	Good
Lee et al., 201938	V	V		V			V	V	V	V	V	7	Good
Xu et al., 201737	V	V	V	V			V	V	V	V	V	8	Good
Lee et al., 201636	V	V		V			V	V		V	V	6	Good
Salhab et al., 201640	V	V		V				V	V	V	V	6	Good
Ji et al., 201435		V		V				V	V	V	V	6	Good

Items: 1, eligibility criteria and source of participants; 2, random allocation; 3, concealed allocation; 4, baseline comparability; 5, blinded participants; 6, blinded therapists; 7, blinded assessors; 8, adequate follow-up; 9, intention-to-treat analysis; 10, between-group comparisons; 11, point estimates and variability. *Not included in the calculation of the total score. Methodological quality: excellent, 9–10 points; good, 6–8 points; fair, 4–5 points; poor, 0–3 points; yes (V), 1 point; no (), 0 points.