Table 7.

Decomposition of concentration index of inpatient benefits among Urban-Rural Basic Medical Insurance (URRBMI) enrollees

	the Urban Resident Basic Medical Insurance (URBMI)
	Elasticity	Concentration index (CI)	Contribution to CI	Contribution to CI %
Gender, ref.: Male	0.0669	−0.0077	−0.0005	− 0.49%
Age, ref.:≤44
45–59	−0.0186	0.1019	−0.0018	−1.84%
≥ 60	0.1009	0.3098	0.0313	30.29%
Marital status, ref.: married	−0.0768	0.0045	−0.0003	− 0.33%
Employment/retirement status, ref.: employment
Retirement	−0.0079	0.1516	−0.0012	−1.16%
Unemployment or student	−0.1689	−0.0099	0.0017	1.62%
Educational level, ref.: Under primary school
Junior	0.1178	0.0771	0.0091	8.81%
High school or above	0.1137	0.1972	0.0224	21.73%
Chronic, ref.: No chronic	0.2203	0.0862	0.0189	18.40%
Health status(EQ-VAS: self-reported),ref.: Excellent
Good	0.2481	−0.0137	−0.0033	− 3.29%
Medium	0.0865	−0.0207	−0.0017	−1.74%
Poor	0.0303	−0.1259	−0.0038	− 3.69%
Very poor	0.0103	−0.2278	−0.0023	− 2.27%
Distance to the medical institution, ref.:< 1 km	− 0.0835	0.0041	−0.0003	−0.33%
Willingness to seek inpatient care, ref: Primary care hospital
General hospital or TCM hospital (Traditional Chinese Medicine)	0.0383	0.3851	0.0147	14.29%
Per capita income	0.3919	0.0499	0.0196	18.95%
Total				98.95%