Poisson regression of road traffic mortality rates and years (1990–2019) by type of road user and country income level in adolescents 15–19 years of age
| Income levels | Road users | ||||
| All road injuries IRR (95% CIs) | Pedestrian injuries IRR (95% CIs) | Cyclist injuries IRR (95% CIs) | Motorcyclist injuries IRR (95% CIs) | Motor vehicle injuries IRR (95% CIs) | |
| Global | 0.98 (0.97 to 0.99) | 0.98 (0.96 to 1.00) | 0.99 (0.94 to 1.04) | 0.99 (0.97 to 1.01) | 0.98 (0.97 to 1.00) |
| High-income countries | 0.96 (0.95 to 0.97) | 0.96 (0.93 to 0.99) | 0.96 (0.90 to 1.02) | 0.96 (0.93 to 0.98) | 0.96 (0.95 to 0.98) |
| Upper-income to middle-income countries | 0.99 (0.98 to 1.00) | 0.98 (0.96 to 0.99) | 0.99 (0.94 to 1.04) | 1.00 (0.98 to 1.02) | 0.99 (0.97 to 1.01) |
| Lower-income to middle-income countries | 0.99 (0.98 to 1.00) | 0.98 (0.96 to 1.00) | 0.99 (0.94 to 1.04) | 0.99 (0.97 to 1.01) | 0.99 (0.97 to 1.01) |
| Low-income countries | 0.99 (0.98 to 1.00) | 0.98 (0.97 to 1.00) | 0.99 (0.93 to 1.05) | 0.99 (0.96 to 1.02) | 0.99 (0.98 to 1.01) |
IRR, incidence rate ratio.