Table 6 Multivariate linear multiple regression results for covariates of economic cost

**

0.71

3.25

Age in years

(−0.17,1.59)

(0.99,5.52)

10.18

0.0001***

Sex

*

 Female

Ref

Ref

 Male

12.06

−61.09

3.65

0.0269*

(−11.58,35.70)

(−121.77,-0.41)

 Single

Ref

Ref

 Married

19.30

53.42

3.93

0.0203*

(−5.58,44.17)

(−10.43,117.28)

Proximity

*

 Close

Ref

Ref

 Far

32.33

0.84

2.91

0.0554

(5.52,59.15)

(−68.00,69.67)

Education

***

 None

Ref

Ref

 Primary/junior high school

12.27(−26.56,51.11)

−64.17(−163.87,35.52)

18.61

0.0001***

 Secondary

16.19(−22.77,55.16)

−79.76(−179.78,20.27)

 Tertiary

39.84(−4.43,84.11)

−215.75(−329.41,-102.10)

Employment status

***

 None

Ref

Ref

 Private

1.07(−40.83,42.96)

−327.68(−435.22,-220.14)

 Public

5.58(−41.69,52.86)

−302.55(−423.91,-181.19)

2.36

0.0953

 Self-employed

7.35(−25.48,40.17)

−45.51(−129.79,38.76)

 Student/apprentice

66.56(−6.26,139.38)

−19.64(−206.58,167.30)

  R ²

50.8%

64.2%