Fig 1.
The location of Hubei province and its surrounding six provinces.
(figure was drawn by author based on USGS basic information for illustrative purposes only, USGS National Map Viewer (public domain): http://viewer.nationalmap.gov/viewer/).
Table 1.
The classification of selected 12 indicators for correlation analysis.
Fig 2.
The location of six provinces around Hubei and the corresponding form of radar chart.
(figure was drawn by author, A is based on USGS basic information for illustrative purposes only, USGS National Map Viewer (public domain): http://viewer.nationalmap.gov/viewer/).
Fig 3.
The number change of NCCC in China and Hubei province.
(figure was drawn by author).
Fig 4.
The spatial variability of NCCC of COVID-19 in 6 provinces from February 1 to 21.
(figure was drawn by author).
Fig 5.
The change of NCCC in 6 provinces from February 1 to 21.
(figure was drawn by author).
Table 2.
The mean value and standard deviation of NCCC in six provinces for four weeks.
Table 3.
The significant differences of NCCC between every two provinces.
Table 4.
Coefficient of Correlation analysis between NCCC and SGT factors.
Table 5.
Coefficient matrix of Correlation analysis between SGT factors.
Fig 6.
The function relationship between the factors and the confirmed cases in the second week.
(figure was drawn by author).
Table 6.
The regression analysis between the factors and the NCCC in the second week.
Table 7.
The national correlation and regression analysis in the second week.