Table 4.

Spatial durbin model regression results of influencing factors of hospitalization rate of CVD.

Variable	Coefficient	t-Statistic	Variable	Coefficient	t-Statistic
X1	−0.057b	−2.171	W × X1	−0.019	−0.512
X2	0.091a	0.972	W × X2	0.022b	2.135
X3	0.488b	2.266	W × X3	0.197a	6.581
X4	3.162a	26.83	W × X4	−0.414	−1.938
Constant term	−5.376a	−6.691
rho	0.725a	3.778
R2	0.984
Log-L	31.531

X1 (annual average concentration of NO2); X2 (annual average concentration of O3); X3 (annual average temperature); X4 (daytime temperature difference between the annual maximum and minimum).

^aIndicates significance at 1% level. ^bIndicates significance at 5% level.