. 2019 Apr 25;13(4):e0007350. doi: 10.1371/journal.pntd.0007350

Table 2. Correlation coefficients between DF incidence rates and UVs, pop density, GDP, traffic conditions^{^}.

	Acreage of UVs	Pop density^○	GDP^○	UVs’ area^○	Bus stops^○	Subway stations^○	Road density^○
DF incidence rates^a	0.45^*	0.17^**	0.10^**	0.33^**	0.49^**	0.27^**	0.39^**
DF incidence rates^b	/	/	/	0.24^**	0.22^**	0.33^**	0.31^**
DF incidence rates^c	/	/	/	/	0.43^**	0.27^**	0.38^**

Note:

^ denotes that the degrees of freedom for infected UVs and infected units were respectively 333 and 290.

^○ indicates that the research unit is the 1km×1km grid scale.

* This value is significant at the level of 0.05.

** This value is significant at the level of 0.01.

a is all variable correlation analysis.

b is partial correlation coefficients between incidence rates and UV area while respectively controlling the traffic conditions.

c is partial correlation analysis between incidence rates and traffic conditions while controlling UV area.

Table 2. Correlation coefficients between DF incidence rates and UVs, pop density, GDP, traffic conditions^.