Improving health equity: changes in self-assessed health across income groups in China

Table 1 Descriptive statistics stratified by year

Characteristic	Year 2010			Year 2014			X²	P*
	N(%)[SE]^a (n = 31,743)			N(%)[SE]^a (n = 32,006)
Age							307.23	< 0.001
15–30	6151	(26.82%)	[0.35%]	7056	(26.11%)	[0.35%]
30–40	5529	(19.29%)	[0.29%]	4623	(17.11%)	[0.30%]
40–50	7389	(21.51%)	[0.29%]	6699	(21.41%)	[0.31%]
50–60	6109	(15.50%)	[0.24%]	5744	(15.88%)	[0.26%]
> 60	6565	(16.88%)	[0.26%]	7884	(19.49%)	[0.28%]
Gender							23.78	< 0.001
female	16,320	(49.11%)	[0.36%]	15,842	(49.53%)	[0.38%]
male	15,423	(50.89%)	[0.36%]	16,174	(50.47%)	[0.38%]
Region							60.30	< 0.001
western	8846	(27.35%)	[0.34%]	9413	(26.45%)	[0.34%]
central	7509	(25.51%)	[0.31%]	8064	(25.03%)	[0.31%]
eastern	15,388	(47.13%)	[0.36%]	14,539	(48.52%)	[0.38%]
Residence							43.30	< 0.001
urban	14,727	(50.25%)	[0.36%]	13,906	(56.33%)	[0.36%]
rural	17,016	(49.75%)	[0.36%]	17,846	(43.67%)	[0.36%]
Education							18.99	< 0.001
illiteracy	9162	(24.80%)	[0.30%]	8687	(24.12%)	[0.31%]
up to junior high school	15,937	(51.88%)	[0.36%]	15,653	(53.15%)	[0.39%]
up to vocational school	5800	(20.34%)	[0.31%]	5205	(19.60%)	[0.32%]
bachelor degree or above	840	(2.99%)	[0.14%]	748	(3.14%)	[0.15%]
Marital status							149.88	< 0.001
without spouse	6322	(23.3%)	[0.33%]	7661	(27.17%)	[0.35%]
with spouse	25,417	(76.7%)	[0.33%]	24,351	(72.83%)	[0.35%]
Occupation							4400	< 0.001
unemployment	16,347	(49.96%)	[0.36%]	8343	(26.39%)	[0.34%]
agricultural work	7490	(21.91%)	[0.29%]	10,473	(26.98%)	[0.31%]
self-employed	1864	(7.08%)	[0.20%]	3106	(10.83%)	[0.24%]
employees	6042	(21.04%)	[0.31%]	10,094	(35.8%)	[0.37%]
Self-rated health							7.75	< 0.01
good	26,371	(85.44%)	[0.24%]	26,860	(86%)	[0.25%]
poor	5372	(14.56%)	[0.24%]	5156	(14%)	[0.25%]

^aWeighted proportions accounting for sampling design were used to calculate proportions and standard errors
*Person Chi2 test when comparing categories of characteristics between year 2010 and 2014

ISSN: 1475-9276