Influence of China’s 2009 healthcare reform on the utilisation of continuum of care for maternal health services: evidence from two cross-sectional household surveys in Shaanxi Province

Table 4 Decomposition analysis of concentration index on urban women’s continuum of care for maternal health service utilisation before and after healthcare reform (n = 912)

Variables	Before healthcare reform (n = 222)				After healthcare reform (n = 690)
Variables	Elasticity	CI	Contribution to CI	%	Elasticity	CI	Contribution to CI	%
Age (years)
≤ 25	Reference				Reference
26–30	− 0.286	0.062	− 0.018	−13.70	0.080	0.033	0.002	−6.42
≥ 31	−0.138	0.012	−0.002	−1.30	0.005	−0.039	− 0.0002	0.50
Education
≤ Primary school	Reference				Reference
Middle school	1.491	−0.234	−0.350	− 268.90	0.200	− 0.077	− 0.015	37.40
≥ High school	2.210	0.175	0.387	297.50	0.135	0.142	0.019	−46.98
Employment
No	Reference				Reference
Yes	−0.029	−0.444	0.001	0.99	0.153	−0.009	−0.001	3.37
Annual personal expenditure (Chinese Yuan)
Poor	Reference				Reference
Poorer	0.055	−0.069	−0.004	−2.96	− 0.056	−0.770	0.043	− 105.54
Middle	−0.004	0.280	−0.001	−0.96	− 0.104	−0.357	0.037	−90.68
Richer	0.072	0.449	0.033	25.01	−0.107	−0.066	− 0.007	17.16
Richest	0.040	0.545	0.022	16.95	−0.253	0.480	−0.121	296.16
Health score	2.961	0.005	0.014	10.47	0.621	0.003	0.002	−4.74
Health insurance
No	Reference				Reference
Yes	0.289	−0.078	−0.023	−17.40	0.275	−0.036	− 0.010	24.08
Chronic disease
No	Reference				Reference
Yes	−0.012	0.029	− 0.0003	−0.27	− 0.012	−0.202	0.002	−6.04
Parity
1	Reference				Reference
≥ 2	−0.219	−0.029	0.006	4.82	−0.281	−0.018	0.005	−11.99
Needs variables	–	–	−0.006	−4.80	–	–	0.006	−16.70
HI⁴	–	–	0.136	–	–	–	−0.047	–

Abbreviations: CI concentration index, % pure percentage contributions of determinants to the socioeconomic inequality in continuum of maternal health service utilisation, HI horizontal inequity index. Needs variables mean contribution of factors to CI, including age, health score and chronic disease

ISSN: 1475-9276