Table 4. The regression coefficient value of each factor with fatalities of traffic accidents.
| Variables name | Symbola | B | Standard error | Standardized coefficient | t | P |
|---|---|---|---|---|---|---|
| (Constant) | 454269.58 | 3234.71 | 140.44 | 0.000 | ||
| GDP-per-capita (Yuan) | X1(1 to 4) | 0.39 | 0.00 | 0.53 | 92.97 | 0.000 |
| Education level (104 persons) | X2(1 to 4) | −10.85 | 0.06 | −0.34 | −187.30 | 0.000 |
| Health institutions | X3(1 to 4) | 0.10 | 0.00 | 0.38 | 213.52 | 0.000 |
| Population (104 persons) | X4(1 to 4) | −2.84 | 0.02 | −0.67 | −129.29 | 0.000 |
| Car ownership (104vehicles) | X5(1 to 4) | −50.68 | 0.04 | −1.51 | −1168.03 | 0.000 |
| Death tolls (persons) | Y (Observed original value) | |||||
Notes.
a
Based on the quartiles of each variable.(1=“ <P25”, 2=“P25-”, 3=“P50-”, 4 ≥P75). Px is percentile.