Table 3.

Regional differences in the impact of population urbanization.

Variables	SYS-GMM
	Eastern region		Central regions		Western regions
	(1)	(2)	(3)	(4)	(5)	(6)
	Morbidity	Mortality	Morbidity	Mortality	Morbidity	Mortality
Population urbanization	−0.6308*	−0.2719**	−0.3562	−0.4020	−0.3042	−0.6780
	(−1.957)	(−2.316)	(−0.086)	(−1.216)	(−1.446)	(−0.909)
Population density	3.1638	−7.4401	−6.6646	−8.8899	5.5022	2.4767
	(1.245)	(−1.232)	(−0.905)	(−0.910)	(0.778)	(0.395)
Age	0.8588	1.0626	2.7547**	1.0209	0.1665	0.6464*
	(1.101)	(0.182)	(2.035)	(1.178)	(0.017)	(1.845)
rgdp	0.2820	−0.1240	0.6602*	−1.2548	−1.1821**	−0.9506
	(1.061)	(−0.519)	(1.799)	(−0.706)	(−2.268)	(−1.308)
Expend	−1.0228*	−0.3583	−1.1218	1.9069	−1.9507*	0.7748
	(−1.836)	(−0.156)	(−1.549)	(1.191)	(−1.720)	(0.671)
Medical	−0.2009**	−0.4367**	−0.3246*	−0.4469	−0.1684	−0.4895
	(−2.225)	(2.138)	(−0.493)	(−1.078)	(−0.725)	(−0.396)
Air	−0.0461	−0.0440	−1.1638**	−0.3371	−1.0795	−0.1793
	(−1.294)	(−0.640)	(−2.114)	(−1.074)	(−1.472)	(−1.494)
L.disease	0.6021***	0.2870***	−1.2830**	−1.1777***	−1.0159**	3.4958**
	(6.033)	(3.038)	(−2.503)	(−2.976)	(−2.329)	(2.537)
AR_1	0.0644	0.0221	0.0189	0.0168	0.0822	0.0243
AR_2	0.4952	0.6207	0.349	0.9265	0.7641	0.4104
Sargan text	0.9998	1.0000	1.0000	1.0000	1.0000	1.0000
Observations	204	204	153	153	170	170

***, **, *The significance level of 1, 5 and 10%, respectively. The numbers with asterisks in the corresponding rows of all variables in the table represent the estimation coefficients, and the values in the parentheses are the corresponding T statistical values, and the P values of AR_1, AR_2, and Sargan test are provided respectively.