Table 2 Criteria on which studies were assessed for inclusion
Inclusion criteriaScoring
1. Were the inclusion/exclusion criteria clearly defined?1–3
2. Were there sufficient subject numbers included?1–3
3. What was the quality of the research design used?1–3
4. Comparability of injury and control group?1–3
5. What methods/measures were used to classify foot type?1–3
6. Were appropriate statistical methods used?1–3