Table 6.

Decomposition of concentration index of intensity in elderly households with chronic disease patients (at a non-food expenditure threshold of 40%)

		Rural areas				Urban areas
		Elasticity	Concentration index (CI)	Contribution to CI	Contribution to CI %	Elasticity	Concentration index (CI)	Contribution to CI	Contribution to CI %
Marital status		−0.0043	0.0397	−0.0002	0.09%	0.3049	0.0591	0.018	−12.15%
Household size		−0.5652	0.1474	−0.1211	62.99%	−1.1583	0.0859	−0.0995	67.14%
Receipt of economic assistance		0.0443	−0.0884	−0.0039	2.04%	−0.0008	−0.1343	0.0001	−0.07%
Provision of economic assistance		−0.0874	0.0906	−0.0079	4.12%	−0.0705	0.0741	−0.0052	3.51%
Providing care		−0.0264	0.0784	−0.0021	1.08%	−0.0454	0.073	−0.0033	2.23%
Household members > 65 years		0.0588	−0.132	−0.0078	4.04%	0.0757	−0.0729	−0.0055	3.71%
Household members with ≥ 2 chronic diseases		0.2352	−0.0161	−0.0038	1.97%	0.4407	−0.0433	−0.0191	12.89%
Per capita income		−0.5996	0.0901	−0.054	28.10%	−1.3067	0.0434	−0.0567	38.26%
Health insurance		0.0844	0.0048	0.0004	−0.21%	−0.2097	−0.0014	0.0003	−0.20%
Outpatient service	Health care post or Village clinic	0.0294	−0.0402	−0.0012	0.61%	−0.014	−0.3169	0.0044	−2.97%
	First-level hospital	0.0163	0.0364	0.0006	−0.31%	0.0212	−0.0341	−0.0007	0.47%
	Second-level hospital and above	0.0337	0.0093	0.0003	−0.16%	0.0484	0.1978	0.0096	−6.48%
Inpatient service	First-level hospital	0.0232	−0.143	−0.0033	1.73%	0.0015	−0.1359	−0.0002	0.13%
	Second-level hospital and above	0.0657	−0.0368	−0.0024	1.26%	0.1458	0.099	0.0144	−9.72%
Total				−0.2064	107.35%			−0.1434	96.76%