| Region; mechanism of injury | Relative probability ratio (95% CI) |
|---|---|
| Nord-du-Québec | |
| Assault | 1.20 (0.55-2.62) |
| All-terrain vehicle collision | 3.50 (1.88-6.52) |
| Snowmobile collision | 3.76 (0.89-15.89) |
| Nunavik | |
| Assault | 11.01 (7.40-16.40) |
| All-terrain vehicle collision | 38.06 (24.93-51.79) |
| Snowmobile collision | 31.39 (17.07-57.72) |
| Terres-Cries-de-la-Baie-James | |
| Assault | 8.70 (5.28-14.33) |
| All-terrain vehicle collision | 5.01 (2.66-9.42) |
| Snowmobile collision | 27.11 (12.98-56.59) |
Note: CI = confidence interval.
*The referent population is the entire province of Quebec, and the referent mechanism of injury is falls. Multiple imputations were used for missing data on mechanisms of injury. Only significant differences in the relative probability ratios are shown. The model was adjusted for age and sex. A complete-case analysis regression output, which shows similar results, is shown in Appendix 3 (available at www.cmajopen.ca/content/4/X/E249/suppl/DC1).