International Journal for Equity in Health

Table 4 Decomposing the change in catastrophic health expenditure at 10% threshold

From: Changes in catastrophic health expenditure in post-conflict Sierra Leone: an Oaxaca-blinder decomposition analysis

Aggregate Decomposition
	Mean
CHE 2011	32.0^***
CHE 2003	50.1^***
CHE gap	−18.1^***
Contribution	Mean	Percent
Distributional Effect	−14.0^***	77%
Coefficient Effect	−6.65^***	37%
Interaction	2.56	−14%
Detailed Decomposition
	Distributional Effect		Coefficient Effect		Interaction Effect
Contribution	Mean	Percent	Mean	Percent	Mean	Percent
Below median expenditure	−0.61	4%	−1.91	29%	0.473	18%
Married	0.194	−1%	−7.56^†	114%	−0.247	−10%
Age (years)	−0.509	4%	−33.6	505%	1.51	59%
Age squared	0.356	−3%	17.1	−257%	−1.33	−52%
Male	0.0966	−1%	2.61	−39%	−0.172	−7%
Muslim	0.201	−1%	−2.63	40%	−0.222	−9%
No education	−0.004	0%	0.904	−14%	0.014	1%
Unemployed adults	−0.355	3%	1.17	−18%	0.276	11%
Rural area	0.0404	0%	0.129	−2%	0.0134	1%
Region	−1.14^**	8%	1.25^**	−19%	−0.427	−17%
Log household size	−0.42	3%	−2.9	44%	0.049	2%
Children under 5 years	0.24	−2%	−0.057	1%	0.0146	1%
Adults over 65 years	−0.067	0%	−0.017	0%	0.0021	0%
Ill health	−10.5^***	75%	−6.96^**	105%	3.62^**	141%
Formal Public	0.234	−2%	2.35^***	−35%	0.132	5%
Formal NGO & Missionary	−0.384^**	3%	0.741^**	−11%	−0.515^**	−20%
Formal Private	−2.01^***	14%	1.02	−15%	−0.671	−26%
Informal Private	0.240^†	−2%	−0.05	1%	−0.028	−1%
Public Hospital	0.314^†	−2%	0.189	−3%	0.169	7%
Private Hospital	0.0613	0%	−0.131^†	2%	−0.102	−4%
Constant			21.8	−328%
Total	−14.0^***	100%	−6.65^***	100%	2.56	100%
Observations	4686		4686		4686

^† p < 0.1, ^** p < 0.05, ^*** p < 0.01

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