Multivariable Analysis of Having Experienced a Crash (N = 4,320)
| Characteristic | Experienced a Crash,a aORb (95% CI) |
|---|---|
| Sex | |
| Male | 1.61 (1.36–1.91) |
| Female | 1.00 (ref) |
| Age, y | |
| 11 | 1.00 (ref) |
| 12–13 | 0.89 (0.68–1.15) |
| 14–15 | 1.12 (0.88–1.42) |
| 16 | 1.13 (0.80–1.60) |
| Riding frequency | |
| Daily/weekly | 3.73 (3.10–4.50) |
| Monthly | 2.07 (1.75–2.45) |
| Yearly | 1.00 (ref) |
| Rurality | |
| Isolated rural | 1.26 (0.78–2.05) |
| Rural | 1.04 (0.69–1.58) |
| Urban | 1.00 (ref) |
| Riding with >1 person/on road | |
| No/no | 1.00 (ref) |
| Yes/no | 1.30 (0.84–2.20) |
| No/yes | 1.77 (1.14–2.74) |
| Yes/yes | 3.24 (2.09–5.04) |
aOR=adjusted odds ratio; ref=reference category.
↵a Students with missing data for 1 or more of the variables in the model were not included in multivariable analysis.
↵b Controlled for all variables in the table. Helmet use was not included in the model because it was not associated with crash risk and did not affect the aORs for other variables.