Socioeconomic inequalities in uptake of HIV testing during antenatal care: evidence from Sub-Saharan Africa

Table 5 Decomposition analysis of the contribution of factors associated with the inequalities of HIV testing during ANC

Variable	Elasticity	Concentration index	Absolute contribution	% contribution
Age
15–19	Ref				1.449
20–24	0.033	-0.015	-0.001	-0.557
25–29	0.052	0.040	0.002	2.331
30–34	0.051	0.027	0.001	1.500
35–39	0.038	0.000	0.000	-0.005
40+	0.020	-0.083	-0.002	-1.820
Level of education
No education	Ref				35.413
Primary	0.105	-0.093	-0.010	-10.892
Secondary/Higher	0.120	0.347	0.042	46.305
Place of residence
Urban	Ref			.	28.903
Rural	-0.124	-0.209	0.026	28.903
Marital status
Not Married	Ref			.	-0.319
Married	-0.151	0.002	0.000	-0.319
Respondent’s occupation
Not working				.	-4.237
Working	0.121	-0.032	-0.004	-4.237
Wealth index				.
Poorest	Ref			.	33.317
Poorer	0.006	-0.372	-0.002	-2.632
Middle	0.009	0.037	0.000	0.375
Richer	0.013	0.436	0.006	6.472
Richest	0.032	0.818	0.026	29.102
Access to mass media
No	Ref				6.356
Yes	0.038	0.152	0.006	6.356
Comprehensive knowledge on HIV/AIDS
No	Ref				12.336
Yes	0.127	0.087	0.011	12.336
Sub-region
Southern Africa	Ref				-12.724
Western Africa	-0.369	0.019	-0.007	-7.818
Eastern Africa	-0.118	0.017	-0.002	-2.224
Central Africa	-0.054	-0.004	0.000	0.225
North Africa	-0.144	0.018	-0.003	-2.908
Calculated CII			0.09
Actual CII			0.034
Residual			-0.056

ISSN: 1475-9276