. 2019 Jan 11;18:6. doi: 10.1186/s12939-019-0912-7

Table 2.

Decomposition results for cigarette smoking prevalence and intensity

	Smoking prevalence						Smoking intensity
	Elasticity		Concentration Index		Contribution		Elasticity		Concentration Index		Contribution
Variable	Coefficient	Std.Error	Coefficient	Std.Error	Coefficient	Std.Error	Coefficient	Std.Error	Coefficient	Std.Error	Coefficient	Std.Error
Age	0.297^a	0.114	0.001	0.003	< 0.001	0.001	0.569^a	0.189	0.001^a	0.003	0.001	0.002
Male	0.601^a	0.025	−0.004	0.015	−0.003	0.009	0.608^a	0.037	−0.004^a	0.014	−0.003	0.009
Married	0.117^a	0.032	0.041^a	0.014	0.005^b	0.002	0.126^b	0.051	0.041^a	0.014	0.005^c	0.003
Widowed/divorced	0.002	0.008	−0.048^a	0.007	0.000	0.000	0.018	0.014	−0.048^a	0.007	−0.001	0.001
Primary school	−0.042	0.031	−0.294^a	0.011	0.012	0.009	0.027	0.033	−0.294^a	0.010	−0.008	0.010
At least secondary school	−0.261^a	0.096	0.424^a	0.011	−0.111^a	0.040	0.010	0.101	0.424^a	0.011	0.004	0.043
Urban	0.162^a	0.042	0.684^a	0.009	0.110^a	0.029	0.084	0.058	0.684^a	0.009	0.058	0.040
Quintile 2	0.024	0.019	−0.375^a	0.010	−0.009	0.007	0.043^c	0.022	−0.375^a	0.010	−0.016^c	0.008
Quintile 3	−0.008	0.021	−0.105^a	0.009	0.001	0.002	0.006	0.024	−0.105^a	0.009	−0.001	0.003
Quintile 4	0.056^b	0.027	0.295^a	0.011	0.017^b	0.008	0.117^a	0.036	0.295^a	0.011	0.035^a	0.011
Quintile 5	0.040	0.030	0.700^a	0.012	0.028	0.021	0.155^a	0.042	0.700^a	0.012	0.109^a	0.030
Region	−0.496^a	0.127	0.074^a	0.005	− 0.037^b	0.010	− 0.350^b	0.169	0.074^a	0.005	−0.026^b	0.013
Residual					0.002	0.036					−0.047	0.045
Overall			0.021^b	0.010					0.135^a	0.032

Note: Estimates are weighted; E_C computed for all dummy variables; bootstrapped standard errors with 1000 replications; “Overall” represents the concentration index of smoking prevalence or intensity; ^a, ^b and ^c indicate significance at the 1, 5 and 10% levels, respectively