Table 2.

The Physiotherapy Evidence Database (PEDro) Scale scores of the included studies.

Studies	1	2	3	4	5	6	7	8	9	10	11	Total Score	Rating
Ancoli-Israel et al., 2003a	YES	√		√						√	√	4	Fair (same study)
Ancoli-Israel et al., 2003b	YES	√		√						√	√	4
Fontana Gasio et al., 2003	YES	√		√				√	√	√	√	6	Good
Dowling et al., 2005a	YES	√		√				√	√	√	√	6	Good
Dowling et al., 2005b	YES	√		√					√	√	√	5	Fair (same study)
Dowling et al., 2007	YES	√		√					√	√	√	5
Dowling et al., 2008	YES	√		√	√	√		√	√	√	√	8	Good
Riemersma-van der Lek et al., 2008	YES	√	√	√	√		√	√	√	√	√	9	Excellent
Burns et al., 2009	YES	√		√			√	√	√	√	√	7	Good
van Hoof et al., 2009	YES			√						√	√	3	Poor
McCurry et al., 2011	YES	√	√	√			√	√	√	√	√	8	Good
Friedman et al., 2012	YES	√		√				√		√	√	5	Fair
Onega et al., 2016	YES	√	√	√			√			√	√	6	Good (same study)
Onega et al., 2018	YES	√	√	√			√			√	√	6
Hjetland et al., 2021	YES	√		√	√				√	√	√	6	Good (same study)
Kolberg et al., 2021	YES	√		√	√				√	√	√	6

1) Eligibility criteria specified (item does not score); 2) random allocation of subjects to groups; 3) concealed allocation; 4) groups’ baseline comparability regarding the most important prognostic indicators; 5) blinding of all subjects; 6) blinding of all therapists; 7) blinding of all appraisers; 8) at least 1 outcome finding from >85% of the subjects; 9) intention-to-treat analysis; 10) between-group statistical comparisons; 11) provided point measures and measures of variability.