Decomposing the causes of socioeconomic-related health inequality among urban and rural populations in China: a new decomposition approach

Cai, Jiaoli; Coyte, Peter C.; Zhao, Hongzhong

doi:10.1186/s12939-017-0624-9

International Journal for Equity in Health

Table 6 RIF-I-OLS decomposition of other forms of rank dependent inequality indices for rural samples

From: Decomposing the causes of socioeconomic-related health inequality among urban and rural populations in China: a new decomposition approach

Variables	Category	(1)	(2)	(3)	(4)	(5)
Variables	Category	rifEI	rifWI	rifARCI	rifSRCI	rifAC
Demographic characteristics
Gender	Female (Reference)
Gender	Male	−0.019***	−0.019***	−0.011***	−0.008**	−0.005***
Age group	Quartile 4 (56+) (Reference)	Reference
	Quartile 1 (18–33)	−0.079***	−0.073***	−0.049***	−0.024***	−0.020***
	Quartile 2 (33–43)	−0.022***	−0.018**	−0.020***	0.002	−0.006***
	Quartile 3 (43–56)	−0.014**	−0.011	−0.012***	0.001	−0.003**
Ethnicity	Ethnic Minority (Reference)
Ethnicity	Han	−0.016**	−0.016**	−0.007**	−0.010***	−0.004**
Marital status	Divorced, separated, or widowed (Reference)
	Married	−0.083***	−0.084***	−0.039***	−0.045***	−0.021***
	Single	−0.075***	−0.075***	−0.036***	−0.039***	−0.019***
Household size		−0.002	−0.001	−0.001	−0.000	−0.000
Health insurance	Yes = 1; No = 0	0.024***	0.024***	0.012***	0.012***	0.006***
Socioeconomic status
Per capita household income		−0.054***	−0.054***	−0.026***	−0.029***	−0.014***
Work status	Work = 1; Not working = 0	0.045***	0.047***	0.018***	0.028***	0.011***
Education degree	Primary education (Reference)
	Secondary education	−0.025***	−0.027***	−0.009***	−0.018***	−0.006***
	Tertiary education	0.228***	0.231***	0.102***	0.129***	0.057***
Lifestyle factors
Smoking history	Yes = 1; No = 0	−0.004	−0.004	−0.001	−0.003	−0.001
Drinking alcohol	Yes = 1; No = 0	0.014**	0.015**	0.005*	0.010***	0.003**
BMI	Normal weight (Reference)
	Underweight	0.095***	0.095***	0.046***	0.049***	0.024***
	Overweight	−0.011	−0.01	−0.007	−0.003	−0.003
	Obese	0.002	0.003	0.000	0.003	0.001
Home environment
Tap water	Yes = 1; No = 0	−0.035***	−0.036***	−0.016***	−0.020***	−0.009***
Flush toilet	Yes = 1; No = 0	−0.023***	−0.025***	−0.009***	−0.016***	−0.006***
Region	Eastern (Reference)
	Middle	−0.017***	−0.020***	−0.004	−0.016***	−0.004***
	Western	−0.027***	−0.031***	−0.005*	−0.026***	−0.007***
Year	1991 (Reference)
	1993	0.022***	0.022***	0.010***	0.012***	0.006***
	1997	0.064***	0.065***	0.029***	0.036***	0.016***
	2000	0.080***	0.080***	0.039***	0.041***	0.020***
	2004	0.065***	0.064***	0.033***	0.031***	0.016***
	2006	0.044***	0.043***	0.024***	0.020***	0.011***
Constant		0.505***	0.501***	0.246***	0.255***	0.126***
Observations		31,958	31,958	31,958	31,958	31,958

*** p < 0.01, ** p < 0.05, * p < 0.1
EI Erreygers index, WI Wagstaff index, ARCI Attainment-relative concentration index, SRCI Shortfall-relative concentration index, AC Absolute concentration index, BMI Body mass index

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