| Level of play | Overall injury rates and rate ratios (game and training combined) | |
| Injury rate /1000 hours (95% CI) | Injury rate ratio (95% CI) | |
| U9 | 22.0 (15.8 to 28.2) | 0.84 (0.61 to 1.14) |
| U10 | 15.6 (10.7 to 20.4) | 0.59* (0.42 to 0.83) |
| U11 | 20.8 (15.7 to 25.8) | 0.79 (0.60 to 1.04) |
| U12 | 15.4 (11.7 to 19.1) | 0.59* (0.45 to 0.77) |
| U13 | 22.0 (18.2 to 25.9) | 0.84 (0.67 to 1.04) |
| U14 | 8.6 (5.9 to 11.4) | 0.33* (0.23 to 0.46) |
| U15 | 9.2 (6.7 to 11.6) | 0.35* (0.26 to 0.47) |
| U16 | 19.0 (14.7 to 23.2) | 0.72* (0.56 to 0.94) |
| U18 | 26.2 (22.7 to 29.8) | Reference |
| Victoria | 17.5 (15.9 to 19.1) | 0.93 (0.80 to 1.08) |
| NSW | 18.8 (16.5 to 21.1) | Reference |
| All games | 42.0 (38.7 to 45.3) | 12.37†(9.87 to 15.5) |
| All training | 3.4 (2.7 to 4.1) | Reference |
NSW, New South Wales.
*Significantly lower than U18 rate (p<0.05). †Significantly higher than training rate (p<0.05).