Income-related equity in inpatient care utilization and unmet needs between 2013 and 2018 in Tibet, China

Zhuoga, Cidan; Cuomu, Zhaxi; Li, Shunping; Dou, Lei; Li, Chaofan; Dawa, Zhaxi

doi:10.1186/s12939-023-01889-4

International Journal for Equity in Health

Table 4 Decomposition of concentration index for unmet inpatient care need among Tibetan in 2013 and 2018

Inpatient care utilization	2013					2018
Inpatient care utilization	CI	β	Elasticity	Contribution	Contribution (%)	CI	β	Elasticity	Contribution	Contribution (%)
Need variables				-0.012	12.72				-0.010	14.79
Female (ref. Male)	-0.008	0.826^***	0.261	-0.002	2.27	-0.004	0.508^**	0.193	-0.001	1.29
Age 30–44 (ref. 16–29)	0.007	-0.367	-0.068	0.000	0.55	0.003	-0.566	-0.132	0.000	0.59
Age 45–59	0.005	-0.596	-0.094	0.000	0.49	0.042	-0.693^*	-0.155	-0.007	9.90
Age 60+	-0.027	-0.825	-0.079	0.002	-2.35	-0.041	-0.446	-0.054	0.002	-3.33
EQ-VAS	0.011	-0.028^***	-1.204	-0.013	14.60	0.022	-0.007	-0.368	-0.008	12.11
Chronic disease: 1 kind (ref. No)	-0.015	1.411^***	0.126	-0.002	2.08	0.017	0.870^***	0.162	0.003	-4.22
2 kinds	0.005	1.070^**	0.076	0.000	-0.43	0.01	1.243^***	0.092	0.001	-1.29
3 kinds and above	0.069	1.500^***	0.059	0.004	-4.49	0.004	1.430^***	0.046	0.000	-0.25
Non-need variables				-0.017	18.91				-0.031	46.74
Log of income	0.070	-0.291	-0.647	-0.045	49.49	0.066	-0.228	-0.619	-0.041	61.72
Married (ref. Unmarried)	0.016	0.454	0.201	0.003	-3.55	0.013	0.291	0.159	0.002	-3.08
Divorced	-0.097	0.769	0.041	-0.004	4.37	0.000	0.149	0.010	0.000	0.01
Retired (ref. Employed)	0.620	0.316	0.004	0.002	-2.58	0.616	-0.436	-0.006	-0.004	5.77
Unemployed	0.035	-0.153	-0.014	-0.001	0.55	-0.083	-0.258	-0.031	0.003	-3.90
Primary school (ref. Lower than primary school)	0.013	0.413	0.073	0.001	-1.09	0.006	-0.053	-0.013	0.000	0.12
Junior middle school	0.089	0.773	0.043	0.004	-4.22	0.108	-1.030^*	-0.083	-0.009	13.55
Senior middle school	0.303	0.400	0.013	0.004	-4.37	0.295	-0.373	-0.019	-0.005	8.31
NRCMS (ref. No)	-0.064	-2.104^**	-1.044	0.067	-73.37	-0.053	-0.739	-0.446	0.024	-35.97
URBMI (ref. No)	0.260	-1.383	-0.120	-0.031	34.22	0.109	0.358	0.040	0.004	-6.62
UEBMI (ref. No)	0.698	-2.110	-0.027	-0.019	20.93	0.621	-0.051	-0.001	-0.001	1.15
Other health insurance (ref. No)	0.507	1.769	0.003	0.001	-1.49	0.216	-1.061	-0.017	-0.004	5.69
Residual				-0.062	68.37				-0.025	38.47

^*, P < 0.05; ^**, P < 0.01; ^***, P < 0.001
CI, concentration index; con, contribution; EQ-VAS, EuroQol Visual Analogue Scale; NRCMS, New Rural Cooperative Medical Schemes; URBMI, Urban Residents Basic Medical Insurance; UEBMI, Urban Employees Basic Medical Insurance

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