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Table 3 Oaxaca-Blinder decomposition of differences in daily smoking between high school students and apprentices in the 2008, 2017-A and 2017-B samples: estimates and percentage contributions. 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 sample2017-A sample2017-B sample
EstimateShareCIEstimateShareCIEstimateShareCI
Log odds(%) Log odds(%) Log odds(%) 
Total Unexplained−0.1458.757.6 to 60.5− 0.1148.844.3 to 50.3−0.1571.466.6 to 83
Total Explained−0.1041.339.5 to 42.4−0.1151.249.7 to 55.7−0.0628.617 to 33.4
Age0.001.60.4 to 2.30.000.0−0.7 to 0.20.001.1−1.3 to 2.1
Gender (Girl)0.01−3.7−0.3 to −9.1− 0.013.6− 10.4 to 8.50.00− 0.26.5 to 15.6
Parental occupational status
 Low0.000.1−0.8 to 0.70.000.9−2.8 to 2.20.00−0.5−3.8 to 0.9
 Disadvantaged0.00− 0.5−2.9 to 1.10.002.2−3.8 to 4.30.000.2−7.2 to 3.3
 Intermediate0.000.1−0.4 to 0.40.000.2−1.7 to 0.90.000.2−0.9 to 0.7
 Advantaged0.000.7−0.8 to 1.60.00−1.3− 12 to 2.50.000.7−8.1 to 4.4
 High0.00−0.8−3.6 to 1.0− 0.015.6−7.5 to 10.20.00−0.4−11.5 to 4.3
Parents living together (Yes)0.000.4−1.1 to 1.3−0.012.6−2.6 to 4.40.00−0.2−5.6 to 2.0
Living alone (Yes)0.000.3−0.2 to 0.70.000.9−1.3 to 1.70.00−0.4−4.1 to 1.2
Suicide attempt (Yes)0.001.70.7 to 2.30.00−0.3−3.5 to 0.80.001.1−1.3 to 2.0
Grade repetition (Yes)−0.014.2−0.7 to 7.2−0.012.6−12.4 to 7.80.01−4.0−23.9 to 4.4
Cannabis in the past month (Yes)−0.0416.416.1 to 16.9−0.0416.916.8 to 17.2−0.0312.910.5 to 13.9
Alcohol in the past month (Yes)−0.014.33.6 to 4.7−0.014.51.1 to 5.6−0.028.04.1 to 9.6
Father smokes (Yes)−0.013.42.2 to 4.2   −0.014.9−0.3 to 7.1
Mother smokes (Yes)−0.014.43.3 to 5.0   −0.015.20.5 to 7.2
Sum of money received (continuous)−0.028.7−1.1 to 14.8−0.0312.8−7.7 to 20.0  66.6 to 83.0
  1. CI confidence interval