Multivariate results: predictors of serious injury (ISS >8) in bicycle crashes*
| Variable | OR | 95% Cl |
|---|---|---|
| Age in years | ||
| ≤5 | 2.1 | 1.2 to 3.8 |
| 6–12 | 1.6 | 1.1 to 2.4 |
| 13–19 | 1.1 | 0.7 to 1.7 |
| 20–39 | 1.0 | Reference |
| ≥40 | 2.2 | 1.4 to 3.5 |
| Motor vehicle involvement | 4.6 | 3.3 to 6.3 |
| Surface (other than paved) | 0.7 | 0.5 to 1.0 |
| Speed >15 mph | 1.2 | 1.0 to 1.5 |
| Wearing a helmet | 0.9 | 0.7 to 1.2 |
*Serious injury=ISS>8, n=232.
Total subjects in the analysis=3343; 47 subjects excluded because of missing data for one or more variables necessary for multivariate analysis.