Specific mechanism of injury distribution*
| Mechanism | Group; no. (%) | p value | ||
|---|---|---|---|---|
| Overall, n = 258 | Street cyclists, n = 209 | Mountain bikers, n = 49 | ||
| Fell off bicycle | 120 (46.5) | 93 (44.5) | 27 (55.1) | 0.20 |
| Attempted to avoid a person, animal or object | 5 (1.9) | 5 (2.4) | 0 (0) | |
| Rode down a hill at high speed | 19 (7.4) | 19 (9.1) | 0 (0) | |
| Hit a speed bump | 2 (0.7) | 2 (0.9) | 0 (0) | |
| Lost balance, speed-related or other cause | 94 (36.4) | 67 (32.0) | 27 (55.1) | |
| Fell while attempting a jump or trick | 29 (11.2) | 19 (9.1) | 10 (20.4) | 0.041 |
| Veered and fell off cliff, roadside or embankment | 14 (5.4) | 6 (2.9) | 8 (16.3) | 0.001 |
| Collided with a person, animal or object other than a motor vehicle | 28 (10.9) | 25 (12.0) | 3 (6.1) | 0.31 |
| Collided with a parked automobile | 7 (2.7) | 7 (3.3) | 0 (0) | |
| Hit by a motor vehicle while bicycling | 58 (22.5) | 58 (27.8) | 0 (0) | |
| Hit by a commuter train while crossing tracks | 1 (0.39) | 1 (0.48) | 0 (0) | |
↵* p values not afforded when event rates too small to compare or when comparisons would not be meaningful (e.g., collision with parked car while mountain biking).