Injuries by competition setting
| Registered gymnasts | No of injuries | Injury incidence per 1000 registered gymnasts (95% CI) | Relative risk (95% CI) | |
| Total injuries | 2102 | 180 | 85.6 (73.4 to 97.8) | |
| Gymnastics meet | ||||
| National qualifier | 248 | 10 | 40.3 (13.8 to 66.8) | reference group |
| Winter cup challenge | 940 | 67 | 71.3 (54.3 to 88.3) | 1.77 (0.92 to 3.38)† |
| USA National Championships | 868 | 97 | 111.8 (90.2 to 133.3) | 2.77 (1.47 to 5.23)** |
| Olympic trials | 46 | 6 | 130.4 (22.2 to 238.6) | 3.23 (1.24 to 8.47)* |
| Competition versus training | ||||
| Training | 2102 | 57 | 27.1 (19.9 to 34.3) | reference group |
| Competition | 2102 | 123 | 58.5 (48.2 to 68.8) | 2.16 (1.59 to 2.94)*** |
| Year of Competition (Winter Cup and USA National Championships Only)‡ | ||||
| 2008 | 154 | 9 | 58.4 (18.1 to 98.7) | |
| 2009 | 160 | 13 | 81.3 (35.8 to 126.7) | |
| 2010 | 205 | 11 | 53.7 (20.4 to 86.9) | |
| 2011 | 192 | 23 | 119.8 (71.3 to 168.3) | |
| 2012 | 159 | 21 | 132.1 (76.3 to 187.8) | |
| 2013 | 152 | 16 | 105.3 (53.2 to 157.3) | |
| 2014 | 152 | 15 | 98.7 (48.0 to 149.4) | |
| 2015 | 153 | 21 | 137.3 (79.5 to 195.1) | |
| 2016 | 169 | 16 | 94.7 (47.6 to 141.8) | |
| 2017 | 158 | 12 | 75.9 (31.5 to 120.4) | |
| 2018 | 154 | 7 | 45.5 (9.3 to 81.6) | |
*P<0.05, **P<0.01,***P<0.001.
†p<0.10.
‡Pearson χ2 test suggests significant variation in incidence between years (p=0.033), but test for linear trend suggests no trend toward increasing or decreasing incidence over the 11-year interval from 2008 to 2018 (p=0.81).