Conventional bike (n = 55) | Electric bike (n = 27) | p-value | |
---|---|---|---|
Male | 37 (67%) | 13 (48%) | 0.095 |
Age at time of accident (years)a | 45 (32–62) | 60 (44–70) | 0.008 |
Helmet use | 38 (69%) | 17 (63%) | 0.825 |
Alcohol or drug use | 8 (15%) | 5 (19%) | 0.434 |
Prescription drug use | 12 (22%) | 11 (41%) | 0.127 |
Frequency of rides per week | 4 (2–7) | 5 (4–7) | 0.184 |
Estimated number of hours riding per weeka | 3.5 (1–7) | 4 (2–8) | 0.337 |
Cause of accident | 0.227 | ||
Single-bicycle (fell/thrown from bicycle) | 36 (65%) | 18 (66%) | |
Collision with motor vehicle | 13 (24%) | 8 (30%) | |
Collision with pedestrian | 0 | 1 (4%) | |
Other (e.g., collision with stationary object) | 6 (7.3%) | 0 | |
Estimated speed at time of accident (km/hour)a | 16 (10–20) | 15 (10–23) | 0.959 |
Season | 0.436 | ||
January–March | 4 (7%) | 0 | |
April–June | 25 (45%) | 10 (37%) | |
July–September | 19 (35%) | 12 (44%) | |
October–December | 7 (13%) | 5 (19%) | |
Wet or snowy road conditions | 6 (11%) | 2 (7%) | 0.999 |
Time of crash | 0.273 | ||
00:01–00:06:00 | 4 (7%) | 1 (4%) | |
06:01–00:12:00 | 16 (29%) | 10 (37%) | |
12:01–00:18:00 | 22 (40%) | 14 (52%) | |
18:01–00:00:00 | 13 (24%) | 2 (7%) |