Research Article
The Incidence of Concussion in a Professional Australian Rugby League Team, 1998–2012
Table 2
Frequency of repeat concussions and timing of injury.
| Number of concussions sustained
| Number of players
| Portion of players injured | Average duration between concussion injuries |
| 1 | 39 | 16.3% | — | 2 | 22 | 9.2% | 583 days | 3 | 17 | 7.1% | 309 days | 4 | 6 | 2.5% | 491 days | 5 | 4 | 1.7% | 318 days | 6 | 1 | 0.5% | 587 days | 7 | 1 | 0.5% | 204 days | Total number of players with multiple concussions | 51 | 21.3% | 381 days |
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