Table 2. Oaxaca-type decomposition for change in inequality for childhood morbidity, 1993–2014.

Variables	E: Elasticity, CI:Concentration Index, t:2014, (t-1):1993–94 or (1996–97 for fever)
	Variation (1)		Variation (2)		Total
	Et (CIt−CIt-1)	CIt-1 (Et−Et-1)	Et-1 (CIt−CIt-1)	CIt (Et−Et-1)	Total	%
For diarrhea
Child’s age (months)	-0.001	0.040	-0.005	-0.038	-0.001	12.00
Child’s age squared	0.002	-0.079	0.003	0.065	-0.002	-7.22
Child sex (= male)	0.002	0.090	0.010	-0.007	0.014	-9.20
Mother age (years)	0.009	0.051	-0.018	-0.009	0.038	-18.52
Mother schooling (years)	-0.043	-0.005	0.005	0.053	0.093	19.66
Birth order	-0.001	-0.047	-0.012	-0.016	-0.019	9.13
Preceding birth interval (months)	-0.002	-0.109	0.008	-0.016	-0.030	-5.29
Antenatal care visits	-0.020	0.030	-0.007	0.038	0.010	17.84
Households size	-0.002	-0.032	0.002	-0.081	-0.028	7.03
Breastfeeding practice (= yes)	-0.004	-0.002	-0.003	-0.002	-0.003	9.85
Access to health facility (= yes)	-0.003	-0.001	-0.005	-0.001	-0.003	3.56
Mass media communication (= yes)	-0.006	0.007	-0.004	-0.007	-0.003	4.62
Chronic undernutrition status (= yes)	-0.008	0.009	-0.007	0.012	0.012	19.11
Vaccination coverage (= yes)	-0.009	0.009	0.014	-0.013	-0.002	-6.15
Residence (= rural)	-0.067	-0.083	0.093	-0.002	-0.015	-5.70
Wealth score	-0.016	-0.034	0.076	-0.079	-0.013	35.48
Residual					-0.008	13.80
Total	-0.169	-0.156	0.150	-0.103	-0.078
For ARIa
Child’s age (months)	-0.002	-0.065	0.001	-0.046	-0.028	18.12
Child’s age squared	0.001	0.034	-0.001	0.023	0.014	-8.45
Child sex (= male)	0.004	0.006	0.002	0.063	0.019	-25.29
Mother age (years)	0.001	0.004	0.004	0.004	0.003	-19.59
Mother schooling (years)	0.013	-0.013	0.009	-0.014	-0.021	14.35
Birth order	0.005	0.003	0.001	0.003	0.033	23.68
Preceding birth interval (months)	-0.001	-0.033	0.003	-0.033	-0.016	-8.69
Antenatal care visits	0.008	0.003	-0.001	0.023	0.028	19.87
Households size	-0.001	-0.045	0.009	-0.046	-0.021	17.18
Breastfeeding practice (= yes)	-0.014	-0.002	-0.005	-0.006	-0.007	9.83
Access to health facility (= yes)	-0.021	0.011	-0.007	-0.005	-0.006	8.01
Mass media communication (= yes)	-0.008	0.007	-0.006	-0.006	-0.003	6.51
Chronic undernutrition status (= yes)	-0.003	0.003	-0.008	0.001	0.011	11.03
Vaccination coverage (= yes)	-0.009	-0.001	-0.001	-0.001	-0.003	-19.03
Residence (= rural)	-0.047	-0.011	-0.009	-0.017	-0.021	-6.09
Wealth score	-0.020	-0.040	-0.030	-0.096	-0.047	40.15
Residual					-0.006	20.41
Total	-0.094	-0.139	-0.039	-0.144	-0.089
For fever
Child’s age (months)	-0.001	-0.055	-0.001	-0.028	-0.021	15.13
Child’s age squared	-0.046	-0.084	0.006	0.051	-0.018	-7.19
Child sex (= male)	0.003	0.017	0.001	-0.008	0.003	-19.16
Mother age (years)	-0.003	-0.007	0.001	-0.008	-0.004	-12.51
Mother schooling (years)	0.023	0.091	0.017	0.054	0.026	9.77
Birth order	-0.002	0.011	0.013	-0.012	0.033	19.54
Preceding birth interval (months)	0.013	-0.042	0.002	-0.015	-0.011	-7.29
Antenatal care visits	0.025	0.075	-0.036	0.040	0.026	16.31
Households size	0.016	0.088	-0.016	-0.081	0.012	11.17
Breastfeeding practice (= yes)	-0.011	-0.009	-0.007	-0.003	-0.008	9.83
Access to health facility (= yes)	-0.020	0.008	-0.008	-0.015	-0.009	8.01
Mass media communication (= yes)	-0.008	0.006	-0.001	-0.021	-0.006	6.51
Chronic undernutrition status (= yes)	-0.007	0.002	-0.004	0.008	0.021	19.03
Vaccination coverage (= yes)	0.006	-0.031	-0.016	-0.012	-0.013	-8.33
Residence (= rural)	-0.019	-0.027	0.024	-0.002	-0.006	-8.19
Wealth score	-0.014	-0.096	-0.081	-0.072	-0.066	39.17
Residual					-0.009	18.20
Total	-0.045	-0.053	-0.107	-0.124	-0.082

Note: Variation (1) (2) uses E_t (E_t-1) and C_t (C_t-1) to weight changes in C and E respectively. See Wagstaff et al. (2003) [42],

^aARI = Acute Respiratory Infections