| Author/Items | Random allocation | Concealed allocation | Groups similar at baseline | Participant blinding | Therapist blinding | Assessor blinding | <15% dropouts | Intention-to-treat analysis | Between-group difference reported | Point estimate and variability reported | Total PEDro-score (0 to 10) |
| Ahmed et al. (2009) | − | − | + | − | − | − | + | − | + | + | 4 |
| Ansari et al. (2006) | + | − | − | + | − | + | − | − | + | + | 5 |
| Durmus et al. (2010) | + | − | + | + | − | + | − | − | + | + | 6 |
| Durmus et al. (2013) | + | + | + | + | + | − | + | + | + | + | 9 |
| Durmus et al. (2014) | + | + | + | − | + | − | + | − | + | + | 7 |
| Ebadi et al. (2012) | + | + | + | + | − | − | + | + | + | + | 8 |
| Licciardone et al. (2013) | + | + | + | + | − | + | + | + | + | + | 9 |
| Mohseni-Bandpei et al. (2006) | + | + | + | − | − | + | + | + | + | + | 8 |
| Shakoor et al. (2008) | + | + | + | − | − | − | − | − | + | + | 5 |