Table 1 PEDro scale for assessing the methodological quality of the included studies

Eligibility criteria were specified

v

v

v

Participants were randomly allocated to groups

v

v

v

Allocation was concealed

x

x

x

The groups were similar at baseline

v

v

v

There was blinding of all participants

v

x

v

There was blinding of all assessors

v

x

x

There was blinding of all therapists

x

x

x

At least one key outcome was obtained for more than 85% of the participants

v

v

v

Treatment or control regarding allocation or intention to treat

v

v

v

The results of between-group statistical comparisons were reported for at least one key outcome

v

v

v

The study provided both point measures and measures of variability for at least one key outcome

v

v

v

Total

8

6

7