Table 2. Results of univariate regression analysis.

Variable	Regression coefficient	95% CI
GDP per capita (1000 yuan)	0.012	(0.010, 0.014)
Disposable income of urban residents (1000 yuan)	−0.002	(−0.006, 0.001)
Population density (1000 people/km2)	0.035	(0.018, 0.049)
Urbanisation rate (%)	0.030	(0.030, 0.0312)
The proportion of tertiary industry (%)	0.006	(0.004, 0.007)
Number of beds in health institutions per 1000 population (Pieces)	0.006	(−0.001, 0.015)
Health expenditure (billion yuan)	0.015	(−0.012, 0.043)

GDPgross domestic productpcspieces