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Table 1 Methodological quality of the studies included in the systematic review (PEDro scores)
| Abdellaoui et al.2011 [42] | Gerovasili et al. 2009 [25] | Gruther et al.2010 [43] | Karatzanos et al.2012 [34] | Poulsen et al.2011 [44] | Rodríguez et al.2011 [45] | Routsi et al.2010 [35] | Zanotti et al.2003 [46] | |
|---|---|---|---|---|---|---|---|---|
| Random allocation | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Concealed allocation | ✓ | ✓ | ||||||
| Baseline comparability | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
| Blinded subjects | ✓ | ✓ | ||||||
| Blinded therapists | ||||||||
| Blinded assessors | ✓ | ✓ | ✓ | ✓ | ||||
| Follow-up | ✓ | ✓ | ✓ | |||||
| Intention-to-treat | ✓ | ✓ | ✓ | |||||
| Between-group analysis | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Point estimates and variability | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Total score | 7/10 | 5/10 | 6/10 | 4/10 | 6/10 | 8/10 | 4/10 | 4/10 |
