Table 1.

Dependent and independent variables

Variables	Definition	Expected sign1	Mean	Standard deviation
Dependent variable	Household Food Insecurity Access Scale Score with values ranging from 0 to 27		9.42	5.82
Independent variables	Housing property, HP = 1 for self-owned property, 0 for otherwise	−	0.77	0.42
	Days of complete closure (days), DCC	+	53.79	11.7
	Community infection, CI = 1 for the community had confirmed cases (s), 0 for otherwise		0.52	0.50
	Hukou, 1 for Wuhan, 0 for otherwise	−	0.74	0.44
	LTR, 1 for long-term resident, 0 for otherwise	−	0.85	0.36
	Expenditures on medical and protective equipment (thousand Chinese Yuan), EMPE	+	1.83	4.45
	Dummy variable for household size, HHSL = 1 for no less than 7 persons, 0 for otherwise		0.08	0.27
	Pregnant or infant household, PIH = 1 for household with pregnant (s) or infant (s), 0 for otherwise	+	0.33	0.47
	Negative income shock, NIS = 1 for yes, 0 for no	+	0.50	0.50
	Group purchase, GP = 1 for yes, 0 for no	−	0.67	0.47
	Property management agent purchase, PMAP = 1 for yes, 0 for no	−	0.39	0.49
	Neighborhood committee purchase, NCP = 1 for yes, 0 for no	−	0.53	0.5
	Volunteer purchase, VP = 1 for yes, 0 for no	−	0.36	0.48
	TPN, total purchase method number, range from 0 to 4	−	2.02	1.06

¹The expected sign shows the relationship of this variable to Household Food Insecurity Access Scale Score (HFIASS), with ‘+’ indicating a positive correlation and ‘−’ indicating a negative correlation. For example, the sign for housing property is ‘−’, which indicates that self-owned property households will have a relatively low HFIASS.