Feature-specific injury rate ratios and 95% CI
| All injuries | Severe injuries | |||||
|---|---|---|---|---|---|---|
| Cases (n=277)* | Controls (rails) (n=39) | RR (95% CI) | Cases (n=176)† | Controls (rails) (n=21) | RR (95% CI) | |
| Half-pipe | 19 | 39 | 6.03 (3.29 to 10.68) | 13 | 21 | 7.66 (3.52 to 16.02) |
| Jumps | 85 | 39 | 6.02 (4.07 to 9.03) | 59 | 21 | 7.76 (4.65 to 13.45) |
| Kickers | 84 | 39 | 1.44 (0.98 to 2.17) | 54 | 21 | 1.72 (1.02 to 3.00) |
| Mushroom | 16 | 39 | 1.21 (0.63 to 2.21) | 7 | 21 | 0.98 (0.35 to 2.40) |
| Boxes | 62 | 39 | 1.53 (1.01 to 2.35) | 37 | 21 | 1.70 (0.97 to 3.05) |
| Quarter-pipes | 11 | 39 | 0.56 (0.26 to 1.12) | 6 | 21 | 0.57 (0.19 to 1.46) |
N, number; RR, rate ratio.
*Four snowboarders could not recall feature used at time of injury and 13 snowboarders were not using a feature at the time of injury but were in the boundaries of the terrain park (TP) for a total of 333 TP injuries.
†Two snowboarders could not recall feature used at time of injury and nine snowboarders were not using a feature at the time of injury but were in the boundaries of the TP for a total of 208 severe TP injuries. Bold refers to statistically significant results.