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Rate of hip injury reporting per 1,000 registered players, with age groups from Peewee to Senior represented each year
| Year | Hip injuries reported per 1,000 registered players (n) | 95% CI |
|---|---|---|
| 2005 | 0.003 | (0.003–0.004) |
| 2006 | 0.030 | (0.029–0.031) |
| 2007 | 0.100 | (0.099–0.101) |
| 2008 | 0.068 | (0.063–0.065) |
| 2009 | 0.063 | (0.062–0.064) |
| 2010 | 0.129 | (0.128–0.131) |
Abbreviation: CI, confidence interval.
