Table 2. Comparison of traffic accident mortality rates in different areas from 2007 to 2016.
| Group | N (%) | Mortality rate/ 100,000 population | χ2 | P value |
|---|---|---|---|---|
| China | 648678 (100.00) | 4.80 | ||
| Guizhou | 11658 (1.80) | 3.30 | 1332.74 | <0.001a |
| Eastern areas | 311991 (48.10) | 5.64 | ||
| Central areas | 160409 (24.73) | 3.77 | ||
| Western areas | 176278 (27.17) | 4.82 | 896.17 | <0.001 |
| East vs. Central | 724.29 | <0.001 | ||
| East vs. West | 234.30 | <0.001 | ||
| Central vs. West | 369.27 | <0.001 |
Notes.
a
Mortality rate, Guizhou province vs. the whole nation (China).