Table 1.
Methodological quality assessment using PEDro scale.
| Study | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Total | Overall Quality |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paavolainen et al. [17] | Y | N | N | Y | N | N | N | Y | Y | N | Y | 4 | Moderate |
| Hoff et al. [15] | N | Y | N | Y | N | N | Y | Y | Y | Y | Y | 7 | High |
| Hoff et al. [13] | Y | Y | N | Y | Y | Y | N | Y | Y | Y | Y | 8 | High |
| Østerås et al. [14] | Y | Y | N | Y | N | N | N | Y | Y | N | Y | 5 | Moderate |
| Mikkola et al. [18] | Y | N | N | Y | N | N | N | Y | Y | Y | Y | 5 | Moderate |
| Losnegard et al. [16] | Y | N | N | Y | N | N | N | Y | Y | Y | Y | 5 | Moderate |
| Skattebo et al. [23] | Y | N | N | Y | N | N | N | Y | Y | Y | Y | 5 | Moderate |
| Carlsson et al. [19] | Y | Y | N | Y | N | N | N | Y | Y | Y | Y | 6 | High |
| Øfsteng et al. [24] | Y | N | N | Y | N | N | N | Y | Y | Y | Y | 5 | Moderate |
| Vahtra et al. [25] | Y | N | N | Y | N | N | N | Y | Y | Y | Y | 5 | Moderate |
| Mean | - | - | - | - | - | - | - | - | - | - | - | 5.5 | Moderate |
| Median | - | - | - | - | - | - | - | - | - | - | - | 5 | - |
Y: yes, N: no. 1: Eligibility criteria were specified. 2: Subjects were randomly allocated to groups. 3: Allocation was concealed. 4: The groups were similar at baseline regarding the most important prognostic indicators. 5: There was blinding of all subjects. 6: There was blinding of all therapists/researchers who administered the therapy/protocol. 7: There was blinding of all assessors who measured at least one key outcome. 8: Measures of at least one key outcome were obtained from more than 85% of the subjects that were initially allocated to groups. 9: All subjects for whom outcome measures were available received the treatment or control condition as allocated or, where this was not the case, data for at least one key outcome were analyzed using “intention to treat”. 10: The results of between-group statistical comparisons were reported for at least one key outcome. 11: The study provided both point measures and measures of variability for at least one key outcome.