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. 2020 Aug 20;15(8):e0237900. doi: 10.1371/journal.pone.0237900

Table 1. Descriptive statistics.

(1) (2) (3) (4) (5)
N mean sd min max
Household level
Male 770 0.497 0.500 0 1
Head 770 0.549 0.498 0 1
Household size 770 3.914 1.342 1 10
Number of old (>60) 770 0.648 0.855 0 4
Number of children (<18) 770 0.712 0.763 0 4
Dummy for college graduates 770 0.578 0.494 0 1
Dummy for college 770 0.323 0.468 0 1
Dummy for under college 770 0.0987 0.298 0 1
Age: Under 35 years old 770 0.457 0.498 0 1
Age: 36 to 45 years old 770 0.319 0.467 0 1
Age: Above 46 years old 770 0.223 0.417 0 1
HH annual income: under 100,000 RMB (Yuan) 770 0.291 0.454 0 1
HH annual income: 100,000 to 200,000 RMB (Yuan) 770 0.290 0.454 0 1
HH annual income: Above 200,000 RMB (Yuan) 770 0.419 0.494 0 1
Food expenditure from e-commerce/Food expenditure > 0.5 770 0.400 0.490 0 1
City level
Population (Unit: 10,000) 150 508.2 391.0 14.80 3,391
Number of COVID-19 cases 150 107 295 0 2,791
Share of coronavirus cases (every 10,000) 150 0.206 0.525 0 3.751
Distance to Wuhan city (km) 150 960.892 716.980 56.564 3,602.756