Table 2 Methodological quality of the studies included (ratings on the PEDro scale).
Study | Inclusion criteriaa | Random allocation | Concealed allocation | Similarity at baseline | Subject blinding | Therapist blinding | Assessor blinding | > 85% follow-up | Intention to treat analysis | Between-group comparisons | Point estimates and variability | Total (points) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Engel et al.26 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Engel et al.27 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Schmidt et al.28 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Ballesta-Garcia et al.29 | + | + | − | + | − | − | + | − | + | + | + | 6 |
Sperlich et al.30 | + | + | − | + | − | − | − | + | + | + | + | 6 |
McRae et al.31 | − | − | − | + | − | − | − | + | − | + | + | 4 |
Schaun et al.32 | + | + | − | + | − | − | + | + | + | + | + | 7 |
Schaun et al.33 | + | + | − | + | − | − | + | − | + | + | + | 6 |
Evangelista et al.34 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Garcia-Pinillos et al.35 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Menz et al.36 | + | + | − | + | − | − | − | − | + | + | + | 5 |
Buckley et al.37 | − | + | − | + | − | + | − | + | + | + | + | 7 |
Greenlee et al.38 | + | + | − | + | − | − | − | − | − | + | + | 4 |
Jimenez-Garcia et al.39 | + | + | + | + | − | − | − | + | + | + | + | 7 |
Wilke et al.5 | + | + | − | + | − | − | − | + | + | + | + | 6 |
Islam et al.40 | + | + | − | + | − | − | − | + | + | + | + | 6 |
