Table 2.

Descriptive statistics and socioeconomic characteristics of the sampling data by income quintile

Income quintiles	No. of families	No. of individuals	Per capita household expenditure	OOP
1—poorest	602	1767	5486.63 (5335.91 to 5637.35)	617.23 (559.71 to 674.76)
2	602	1780	10,355.37 (10,261.41 to 10,449.34)	932.15 (825.89 to 1038.41)
3	601	1775	14,558.69 (14,456.95 to 14,660.44)	1143.78 (1021.26 to 1266.30)
4	602	1762	20,261.31 (20,096.49 to 20,426.14)	1808.89 (1616.48 to 2001.30)
5—richest	601	1770	38,641.08 (37,205.61 to 40,076.54)	5169.61 (4224.93 to 6114.29)
Total	3008	8854	17,854.81 (17,352.02 to 18,357.60)	1933.52 (1729.42 to 2137.62)

Data source: Author’s analysis from the sample of household survey

Note: All expenditures are presented in CNY. 95% confidence intervals are in the parentheses