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Table 5 Single regression analysis with average travel time and selected variables

From: The effect of the development of an emergency transfer system on the travel time to tertiary care centres in Japan

Label Parameter Standard deviation t value Pr>|t|
Intercept 69.15509 3.36611 20.54 <0.0001
Population -0.00000465 9.17E-07 -5.06 **<0.0001
Intercept 72.32474 6.86429 10.54 <0.0001
Pavement ratio (%) -0.5484 0.22274 -2.46 0.0178*
Intercept 38.70193 5.68413 6.81 <0.0001
Size (km2) 0.00298 0.00083171 3.58 0.0009**
Intercept 60.64811 6.51694 9.31 <0.0001
Kilometres of general road -0.00016857 0.00025751 -0.65 0.5161
Intercept 58.56759 5.69418 10.29 <0.0001
Kilometres of express road -0.01191 0.03352 -0.36 0.7241
Intercept 41.20992 4.54893 9.06 <0.0001
Mountain area (km2) 0.00379 0.00092453 4.1 0.0002**
Intercept 63.69628 6.44123 9.89 <0.0001
Total kilometres of all roads -0.00028853 0.00024217 -1.19 0.2399
Intercept 67.92296 6.74665 10.07 <0.0001
Road area (km2) -0.0799 0.04414 -1.81 0.0771
Intercept 60.30891 3.97391 15.18 <0.0001
Kilometres of impassable road -0.00097826 0.00077232 -1.27 0.2119
Intercept 88.52593 17.26037 5.13 <0.0001
Maintenance ratio of general road(%) -0.59098 0.31753 -1.86 0.0694
Intercept 69.46632 3.25579 21.34 <0.0001
Number of tertiary care centres -3.4803 0.64365 -5.41 <0.0001**
Intercept 72.04288 4.24031 16.99 <0.0001
Number of fire stations -0.17113 0.03901 -4.39 <0.0001**
Intercept 103.57903 10.67744 9.7 <0.0001
Percentage of emergency team with EMT to all emergency teams (%) -0.6629 0.14747 -4.5 <0.0001**
Intercept 73.85993 5.09866 14.49 <0.0001
Number of ambulances -0.1485 0.0386 -3.85 0.0004**
Intercept 74.32109 5.35074 13.89 <0.0001
Number of emergency teams -0.18252 0.04908 -3.72 0.0006**
Intercept 72.96964 3.992 18.28 <0.0001
Number of emergency teams with EMT -0.22835 0.04579 -4.99 <0.0001**
Intercept 70.48444 3.81825 18.46 <0.0001
Number of EMT -0.04839 0.01051 -4.6 <0.0001**
Intercept 74.14823 5.8457 12.68 <0.0001
Number of emergency crew -0.01486 0.00449 -3.31 0.0019**
Intercept 64.71215 3.0713 21.07 <0.0001
Number of emergency medical specialists -0.19617 0.04584 -4.28 <0.0001**
Intercept 70.70814 3.59755 19.65 <0.0001
Number of tertiary hospitals -3.29038 0.65072 -5.06 <0.0001**
Intercept 68.89425 3.80355 18.11 <0.0001
Number of secondary hospitals -0.1634 0.03912 -4.18 0.0001**
Intercept 61.56359 5.30389 11.61 <0.0001
Number of primary hospitals -0.14026 0.13185 -1.06 0.2932
Intercept 48.80577 4.61801 10.57 <0.0001
Number of primary hospitals per million capita 4.4139 2.02837 2.18 0.035*
Intercept 63.54299 2.75577 23.06 <0.0001
Population density -0.0099 0.00207 -4.79 <0.0001**
Intercept 79.81974 4.73202 16.87 <0.0001
Kilometres of general road per square kilometre -5.4808 0.99273 -5.52 <0.0001**
Intercept 79.86274 5.00264 15.96 <0.0001
Kilometres of highway road per square kilometre -890.52604 171.69149 -5.19 <0.0001**
Intercept 79.03227 4.29357 18.41 <0.0001
Total kilometres of all roads per square kilometre -4.95391 0.82665 -5.99 <0.0001**
Intercept 64.5504 3.63863 17.74 <0.0001
Kilometres of impassable road per square kilometre -11.8776 3.83601 -3.1 0.0034**
Intercept 38.47616 3.09223 12.44 <0.0001
Average coverage area per tertiary care centre 0.00662 0.0008726 7.59 <0.0001**
Intercept 36.56935 4.21284 8.68 <0.0001
Average coverage area per fire station 0.21018 0.03711 5.66 <0.0001**
Intercept 33.75986 4.73479 7.13 <0.0001
Average coverage area per ambulance 0.35238 0.06366 5.53 <0.0001**
Intercept 33.43733 4.71752 7.09 <0.0001
Average coverage are per emergency team 0.30365 0.05396 5.63 <0.0001**
Intercept 34.1383 3.9444 8.65 <0.0001
Average coverage area per emergency team with EMT 0.18787 0.02789 6.74 <0.0001**
Intercept 35.06809 4.1664 8.42 <0.0001
Average coverage area per EMT 0.70799 0.11604 6.1 <0.0001**
Intercept 30.7381 4.59037 6.7 <0.0001
Average coverage area per emergency crew 4.2571 0.6655 6.4 <0.0001**
Intercept 42.36434 3.63255 11.66 <0.0001
Average coverage area per emergency medical specialist 0.0437 0.00847 5.16 <0.0001**
Intercept 37.4911 3.71768 10.08 <0.0001
Average coverage area per tertiary hospitals 0.00917 0.00145 6.33 <0.0001**
Intercept 41.81954 4.094 10.21 <0.0001
Average coverage area per secondary hospitals 0.11199 0.02467 4.54 <0.0001**
Intercept 49.73788 3.74773 13.27 <0.0001
Average cover area per primary hospitals 0.02387 0.00873 2.73 0.009**
  1. d.f. = 1 for all variables. *p < 0.05, **p < 0.01.