Types of definition of an injury possible in surveillance systems12 13
| Definition type | Scope | Reproducibility | Injury rates |
|---|---|---|---|
| All tissue pathology | Most broad | Least reliable | Highest |
| All symptoms | Broader | Less reliable | Higher |
| All medical presentations | Moderate | Moderate | Moderate |
| Time-loss injuries | Narrower | More reliable | Lower |
| Match time-loss injuries | Most narrow | Most reliable | Lowest |