Table 3

Decomposition of inequalities in stillbirth history in Tehran 2014

VariableMeanCoefficientElasticityCk Absolute contributionPer cent contribution
Most deprived0.1990.083−0.004−0.8000.003
Quintile 20.200−0.25−0.013−0.399−0.005
Quintile 30.200−0.4620.0230.0070.000
Quintile 40.201−0.5640.0290.40.011
Sum26.6
Mother’s age: 15–250.263−0.90.06−0.171−0.01
Mother’s age: 26–350.617−0.5120.080.0480.004
Sum−17.1
Father’s age: 15–250.6520.116−0.019−0.2640.005
Father’s age: 26–350.598−0.0990.015−0.024000
Sum12.6
Mother’s nationality (non-Iranian)0.07−0.3150.006−0.675−0.004−10.1
Father’s nationality (non-Iranian)0.07−0.0660.001−0.662−0.001−2.1
Mother’s education (under diploma)0.2720.589−0.04−0.4480.018
Mother’s education (diploma)0.4020.159−0.016−0.0330.001
Sum50.1
Father’s education (under diploma)0.3280.071−0.006−0.4190.002
Father’s education (diploma)0.3540.058−0.0050.0110.000
Sum6.5
Father’s occupation (skilled)0.431−0.0660.0070.1910.001
Father’s occupation (unskilled)0.505−0.0180.002−0.1330.000
Sum2.9
Mother’s occupation (housewife)0.8740.685−0.153−0.0740.01130.5
Natural logarithmic mean of stillbirth−3.9660.037100