Table 1.

Quality Scores of Studies in Systematic Review

Scores in PEDro Scale*
Author1234567891011Total Score γ
γ The total score is determined by counting the number of criteria that are satisfied, except that scale item I is not used to generate the total score, giving a total score out of 10.
+ Indicates the criterion was clearly satisfied; − indicates that it was not; ? indicates that it is unclear whether criterion was satisfied.
Aigner & Fielka, 199814−+??+????+−3
Carter et al, 200215+++++++−?++8
Chang et al, 199816++++++++?+−8
Dammers et al, 199917++?++++++++9
Davis et al, 199818++−+−−−−+++5
Ebenbichler et al, 199819++?+++?−+++7
Elbaz et al, 199420−+?++++??+?6
Garfinkel et al, 199821++++?−+−−+−5
Herskovitz et al, 199522++?++++−−+−6
O’Gradaigh & Merry, 200023++?++?−??+−4
Ozdogan & Yazici, 198424++?++++−?++7
Oztas et al, 199825++?++????++5
Spooner et al, 199327++?+++++?++8
Stransky et al, 198928−+??+??+?−−3
Walker et al, 200029++?+−−−−?++5
Wong et al, 200130+++++++++++10
* Column numbers correspond to the following on the PEDro scale:
  1. Eligibility criteria were specified.

  2. Subjects were randomly allocated to groups.

  3. Allocation was concealed.

  4. Groups were similar at baseline.

  5. Subjects were blinded.

  6. Practitioners who administered the intervention were blinded.

  7. Assessors were blinded.

  8. Measurements of key outcomes were obtained from >85% of subjects.

  9. Data were analyzed by intention to treat.

  10. Statistical comparisons between groups were conducted.

  11. Point measures and measures of variability were provided.