Table 2 Summary of the physiotherapy evidence database (PEDro) scale.

	1	3	7	8	9	10	Overall quality*
Jeong et al., 2017¹⁷	✓	✓	✓	✓	✓	✓	Medium
Sohn et al., 2015¹⁶	✓	✓	✓	✓	✓	✓	Medium
Hwang et al., 2015¹⁵		✓	✓	✓	✓	✓	Medium
Han et al., 2011¹⁰	✓	✓	✓	✓	✓	✓	Medium
Acar and Karatas, 2010¹⁴		✓	✓	✓	✓	✓	Medium
Yavuzer and Ergin, 2002¹³	✓	✓	✓	✓	✓	✓	Medium
Anke et al., 2018¹²	✓	✓	✓	✓	✓	✓	Medium
Şahin et al., 2012¹¹	✓	✓			✓	✓	Medium
Hesse et al., 2013⁷		✓	✓	✓	✓	✓	Medium

1, random allocation; 2, concealed allocation; 3, baseline similarity; 4, subject blinding; 5, therapist blinding; 6, assessor blinding; 7, more than 85% follow-up for at least one key outcome; 8, intention-to-treat analysis; 9, between-group statistical comparison for at least one key outcome; 10, point and variability measures for at least one key outcome.
*Methodological quality: high, ≥ 7 points; medium, 4–6 points; low, ≤ 3 points.
w/o: without.

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