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

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**