TABLE 3.
Original and Modified PEDro Scales
| Assessment | Revised Category | Original Category |
|---|---|---|
| External validity/applicability | 1. Eligibility criteria were specified | 1. Eligibility criteria were specified |
| Internal validity | 2. All measures were obtained before sports season onset (prospective design) | 2. Subjects were randomly allocated to groups |
| 3. A power analysis was performed to determine sample size | 3. Allocation was concealed | |
| 4. Reliability data was available for all applicable measures | 4. The groups were similar at baseline regarding the most important prognostic indicators | |
| 5. Other than the measures of interest, the groups were similar at baseline regarding the most important prognostic indicators | 5. There was blinding of all subjects | |
| 6. There was blinding of athletes, trainers, and sports coaches to baseline measures of interest | 6. There was blinding of all therapists who administered the therapy | |
| 7. There was blinding of all assessors of injury to baseline measures of interest | 7. There was blinding of all assessors who measured at least 1 key outcome | |
| 8. Measures of at least 1 key outcome were obtained from more than 85% of the subjects initially recruited | 8. Measures of at least 1 key outcome were obtained from more than 85% of the subjects initially allocated to groups | |
| 9. Before injury, both groups had nonsignificant differences in sport exposure (both practice time and match time), or this was corrected for in the statistical analysis if found to be unequal | 9. All subjects for whom outcome measures were available received the treatment or control condition as allocated | |
| Interpretability | 10. The results of between-group statistical comparisons are reported for at least 1 key outcome | 10. The results of between-group statistical comparisons are reported for at least 1 key outcome |
| 11. The study provides both point measures and measures of variability for at least 1 key outcome | 11. The study provides both point measures and measures of variability for at least 1 key outcome | |
| Scoring | Assign 1 point for each item in criteria 2–11 that is met. The first criterion is not included in the total All points are summed to yield a total score of up to 10 points |
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