Table 4 Results of the regression analysis
From: Analysis of the regional distribution of road traffic mortality and associated factors in Japan
Explanatory variables | Men | Women | ||
|---|---|---|---|---|
SPRC (95% CI) | p value | SPRC (95% CI) | p value | |
Demographic characteristics | ||||
 Population density | − 0.389 (− 0.455, − 0.323) | 0.000 | − 0.395 (− 0.460, − 0.329) | 0.000 |
 Daytime population | − 0.038 (− 0.083, 0.007) | 0.100 | − 0.102 (− 0.147, − 0.057) | 0.000 |
 Proportion of young population | − 0.006 (− 0.060, 0.049) | 0.832 | 0.008 (− 0.046, 0.062) | 0.774 |
 Proportion of non-Japanese persons | 0.090 (0.040, 0.140) | 0.000 | 0.085 (0.036, 0.134) | 0.001 |
 Proportion of divorced persons | − 0.005 (− 0.061, 0.051) | 0.858 | 0.005 (− 0.050, 0.061) | 0.850 |
Socioeconomic characteristics | ||||
 Proportion of persons with lower educational level | 0.084 (0.004, 0.163) | 0.039 | 0.009 (− 0.070, 0.087) | 0.831 |
 Proportion of clerical workers | − 0.015 (− 0.089, 0.059) | 0.691 | − 0.092 (− 0.165, − 0.019) | 0.014 |
 Proportion of agriculture, forestry, and fisheries workers | 0.105 (0.034, 0.177) | 0.004 | 0.035 (− 0.036, 0.106) | 0.332 |
 Proportion of service workers | 0.051 (0.008, 0.094) | 0.020 | 0.019 (− 0.024, 0.061) | 0.388 |
 Proportion of blue-collar workers | 0.069 (0.017, 0.121) | 0.010 | 0.041 (− 0.010, 0.093) | 0.118 |
 Proportion of unemployed persons | − 0.066 (− 0.121, − 0.010) | 0.020 | − 0.023 (− 0.078, 0.032) | 0.418 |
 Taxable income per capita | − 0.027 (− 0.101, 0.047) | 0.476 | 0.041 (− 0.032, 0.115) | 0.270 |
Medical characteristics | ||||
 Number of clinics per 100,000 persons | 0.040 (− 0.007, 0.087) | 0.095 | 0.020 (− 0.027, 0.067) | 0.402 |
 Number of physicians per 100,000 persons | 0.071 (0.024, 0.118) | 0.003 | − 0.006 (− 0.052, 0.041) | 0.803 |
 Number of hospitals per 100,000 persons | 0.047 (0.003, 0.091) | 0.036 | 0.028 (− 0.015, 0.072) | 0.204 |
Weather characteristics | ||||
 Proportion of rainy days | − 0.026 (− 0.076, 0.025) | 0.314 | 0.062 (0.013, 0.112) | 0.014 |
 Proportion of snow days | − 0.100 (− 0.170, − 0.031) | 0.005 | − 0.128 (− 0.197, − 0.059) | 0.000 |
Characteristics related to vehicles | ||||
 Proportion of holders of a driver’s license | 0.013 (− 0.112, 0.137) | 0.844 | 0.013 (− 0.110, 0.137) | 0.830 |
 Number of owned vehicles per household | 0.082 (− 0.044, 0.208) | 0.201 | 0.156 (0.032, 0.280) | 0.014 |
 Number of owned motorcycles per 1000 persons | 0.013 (− 0.031, 0.056) | 0.576 | − 0.023 (− 0.066, 0.020) | 0.298 |