Table 2.
Results obtained after the evaluation of methodological quality according to the PEDro scale.a
| Study | C1b | C2c | C3d | C4e | C5f | C6g | C7h | C8i | C9j | C10k | C11l | Total score (out of 10) | Methodological quality |
| El-Shamy and Alsharif [41], 2017 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 6 | Good |
| Tarakci et al [43], 2019 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 7 | Good |
| Alsakhawi and Atya [40], 2020 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 6 | Good |
| Yeves-Lite et al [11], 2020 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 5 | Fair |
| Karas et al [42], 2022 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 7 | Good |
a1 indicates that a study meets that criterion, and 0 indicates that the study does not meet the criterion or does not provide sufficient information to ensure it.
bC1: the choice criteria have been specified (not applied to calculate the score of the items on the PEDro scale).
cC2: participants were randomly assigned to groups.
dC3: treatment assignment was performed in a concealed manner.
eC4: groups had similar characteristics at baseline.
fC5: blinding of participants.
gC6: blinded therapists administering the treatment.
hC7: blinded assessors collecting measurements.
iC8: measures of at least 1 of the key outcomes were obtained from >85% of the participants initially assigned to the groups.
jC9: results were presented for all participants who received treatment or were assigned to the control group, or when this could not be done, data for at least 1 key outcome were analyzed on an “intention-to-treat” basis.
kC10: results of statistical comparisons between groups were reported for at least 1 key outcome.
lC11: the study provides point and variability measures for at least 1 key outcome.