Table 1.
Quality assessment of the included studies.
| Citation | Randomization Procedure | Similarity of Study Groups | Inclusion or Exclusion Criteria | Dropouts | Blinding | Compliance | Intention-To-Treat Analysis | Timing of Outcomes Assessment | Follow-Up | Results |
|---|---|---|---|---|---|---|---|---|---|---|
| Kucio et al. (2017) [19] | − | − | + | + | − | − | − | − | − | 2/9 |
| Pilch et al. (2017) [20] | − | − | − | − | − | − | − | + | − | 1/9 |
| Derengowska et al. (2015) [21] | − | − | − | − | − | − | − | − | − | 0/9 |
| Derengowska et al. (2015) [22] | − | − | + | + | − | − | − | − | − | 2/9 |
| Wiklund et al. (2014) [23] | + | − | − | + | + | − | + | + | − | 5/9 |
| Trabka et al. (2013) [24] | + | − | + | + | − | − | − | − | − | 3/9 |
| Fritz et al. (2013) [25] | + | − | + | + | − | − | + | − | − | 4/9 |
| Venojärvi et al. (2013) [26] | + | − | + | + | − | + | − | − | − | 4/9 |
| Fabre et al. (2011) [27] | − | + | + | − | − | + | − | − | − | 3/9 |
| Gram et al. (2010) [28] | + | − | + | + | − | + | − | − | + | 5/9 |