Table 5.
Frequency of fractures and traumatic brain injury according to age for longboarders and also skateboarders.
| Specific injuries |
Longboard | Skateboard | Chi-Square | |||
|---|---|---|---|---|---|---|
| Age group | (n = 474) | (n = 350) | P value | |||
| Number | % | Number | % | |||
| Extremity fractures | ||||||
| <15 | 10 | 47.6 | 0.7304 | 60 | 42.2 | 0.1055 |
| 15–24 | 74 | 39.0 | 37 | 31.9 | ||
| 25+ | 107 | 40.7 | 28 | 30.4 | ||
| Upper extremity | ||||||
| <15 | 7 | 33.3 | 0.4469 | 57 | 40.1 | 0.0004 |
| 15–24 | 41 | 21.6 | 25 | 21.6 | ||
| 25+ | 64 | 24.3 | 18 | 19.6 | ||
| Radius/ulna/radial head | ||||||
| <15 | 6 | 28.6 | 0.0128 | 41 | 28.9 | 0.0003 |
| 15–24 | 15 | 7.9 | 12 | 10.3 | ||
| 25+ | 32 | 12.2 | 13 | 14.1 | ||
| Lower | ||||||
| <15 | 2 | 9.5 | 0.7759 | 2 | 1.4 | 0.0080 |
| 15–24 | 16 | 8.4 | 11 | 9.5 | ||
| 25+ | 18 | 6.8 | 9 | 9.8 | ||
| Tibia/fibula/ankle | ||||||
| <15 | 1 | 4.8 | 0.9812 | 2 | 1.4 | 0.0470 |
| 15–24 | 8 | 4.2 | 9 | 7.8 | ||
| 25+ | 12 | 4.6 | 5 | 5.4 | ||
| Traumatic brain injury (severe) | ||||||
| <15 | 0 | 0.0 | 0.1819 | 0 | 0.0 | |
| 15–24 | 1 | 0.5 | 0 | 0.0 | ||
| 25+ | 7 | 2.7 | 0 | 0.0 | ||
| Traumatic brain injury (moderate) | ||||||
| <15 | 1 | 4.8 | 0.9057 | 0 | 0.0 | |
| 15–24 | 13 | 6.8 | 0 | 0.0 | ||
| 25+ | 16 | 6.1 | 0 | 0.0 | ||
| Traumatic brain injury (mild) | ||||||
| <15 | 3 | 14.3 | 0.0263 | 19 | 13.4 | 0.8640 |
| 15–24 | 56 | 29.5 | 13 | 11.2 | ||
| 25+ | 51 | 19.4 | 11 | 12.0 | ||
Note: percents were conditioned on age; that is, for each age, what percent experienced the specific injury.