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Table 4 Oaxaca-Blinder decomposition of differences in daily smoking between high school students and apprentices in the 2008, 2017-A and 2017-B samples: raw estimates and percentage contributions while excluding use of alcohol and cannabis. ESCAPAD survey, OFDT

From: Why do apprentices smoke much more than high school students? Understanding educational disparities in smoking with a Oaxaca-blinder decomposition analysis

 

2008 sample

2017-A sample

2017-B sample

Estimate

Share

CI

Estimate

Share

CI

Estimate

Share

CI

Log odds

(%)

 

Log odds

(%)

 

Log odds

(%)

 

Total Unexplained

−0.16

65.2

62.8 to 69.4

−0.16

71.3

64.4 to 99.7

−0.18

82.1

74.8 to 99.7

Total Explained

−0.08

34.8

30.6 to 37.2

−0.06

28.7

0.3 to 35.6

−0.04

17.9

0.3 to 25.2

Age

−0.01

2.3

1.3 to 2.9

0.00

−0.1

−2.1 to 0.3

0.00

0.8

−1.3 to 1.7

Gender (Girl)

−0.01

2.3

−1.6 to 4.7

−0.02

10.9

3.4 to 12.7

−0.02

8.5

−1.4 to 12.6

Parental occupational status

 Low

0.00

−0.1

−1.2 to 0.5

0.00

−0.5

−7.6 to 1.2

0.00

−1.3

−5.7 to 0.5

 Disadvantaged

0.00

−1.0

−3.8 to 0.7

0.00

−1.6

−15.2 to 1.7

0.00

0.2

−7.5 to 3.3

 Intermediate

0.00

0.2

−0.3 to 0.5

0.00

−0.3

−3.9 to 0.6

0.00

0.2

−0.9 to 0.7

 Advantaged

0.00

0.2

−1.6 to 1.2

0.00

−1.0

− 15.4 to 2.5

0.00

−0.5

− 10.4 to 3.6

 High

0.00

−1.7

−5.2 to 0.3

0.01

−2.4

−32.1 to 4.9

0.00

−1.1

−12 to 3.4

Parents living together (Yes)

0.00

1.8

0.5 to 2.5

−0.01

6.1

4.6 to 6.5

0.00

0.2

−4.8 to 2.2

Living alone (Yes)

0.00

0.5

−0.2 to 0.9

0.00

0.9

−1.9 to 1.6

0.00

0.3

−2.9 to 1.6

Suicide attempt (Yes)

−0.01

2.5

1.4 to 3.1

0.00

−0.4

−5 to 0.8

0.00

1.3

−0.8 to 2.1

Grade repetition (Yes)

−0.01

2.5

−3.3 to 5.9

0.00

0.2

−23.4 to 6.0

0.01

−5.2

−26.3 to 3.5

Father smokes (Yes)

−0.01

4.1

3.1 to 4.7

   

−0.01

6.2

1.6 to 8.1

Mother smokes (Yes)

−0.02

6.3

5.8 to 6.6

   

−0.02

8.5

5.3 to 9.8

Sum of money received (continuous)

−0.04

15.0

6.0 to 20.3

−0.04

16.9

−11.1 to 23.7

  

74.8 to 99.7

  1. CI confidence interval