Quality assessment of the included studies
| Study | Aim | Inclusion | Data collection | Endpoint | Evaluation bias | Follow-up period | Loss to follow-up | Sample size | Total score |
|---|---|---|---|---|---|---|---|---|---|
| Ricken et al.24 (2021) | 2 | 2 | 1 | 2 | 0 | 2 | 2 | 0 | 11 |
| Jørgensen and Pedersen23 (2017) | 2 | 2 | 1 | 2 | 0 | 2 | 2 | 0 | 11 |
| Silvestre et al.25 (2012) | 2 | 2 | 1 | 2 | 0 | 2 | 2 | 0 | 11 |
| Jankovskis and Selga22 (2021) | 2 | 2 | 1 | 2 | 0 | 2 | 2 | 0 | 11 |
Score: 0=not reported, 1=reported but inadequate, 2=reported and adequate.
Ideal score is 16 for non-comparative studies and 24 for comparative studies.