| Author | Type of injury | Mechanism of injury | Treatment | Classification of severity |
| Paty16 | x | – | – | |
| Pritchett17 | x | – | x | |
| Zillmer18 | x | x | – | Minor if 7 days or less were lost from play, moderate if 8–21 days were lost, and major if 22 or more days were lost |
| Ellison19 | x | – | – | Based on treatment received |
| Gomez20 | x | – | x | Determined by treatment required |
| Beachy21 | – | – | – | Days lost from play |
| Hickey22 | x | – | x | |
| Powell23 | – | – | x | Based on calendar days lost due to injury |
| Messina24 | x | – | x | Injuries that required surgery/hospitalisation |
| Jones25 | x | x | x | Broken bone/dislocation |
| Pasque26 | x | – | – | |
| Powell27 | x | – | – | Calendar days lost: minor if <8 days lost, moderate if 8–21 days lost, major if >21 days lost |
| Junge28 | – | – | – | According to loss of play: mild if lost 1 week of play, moderate if 2–3 weeks were lost, severe if >4 weeks were lost |
| Elias29 | – | – | – | |
| Bergstrom30 | x | – | – | |
| Kakavlakis31 | – | – | – | Absence from games or practices: minor if absent for less than 1 week, moderate if absent for 1 week to1 month, major if absent for >1 month |
| Louw3 | – | x | x | Absent from play |
| Junge32 | – | – | – | Absent from play |
| Yang1 | – | – | – | Loss of time: serious if more than 3 weeks lost |
X = reported.