Table 1.

Background characteristics of the parents.

Characteristics			Value (N=1052), n (%)
Sociodemographics
	Age of the parent (years)
		18-30	238 (22.6)
		31-40	586 (55.7)
		>40	228 (21.7)
	Gender
		Male	394 (37.5)
		Female	658 (62.5)
	Relationships status
		Married	1005 (95.5)
		Currently single or divorced	43 (4.1)
		Having a stable boyfriend or girlfriend	4 (0.4)
	Highest education level attained
		Junior high school or below	448 (42.6)
		Senior high school or equivalent	337 (32.0)
		College or university or above	267 (25.4)
	Monthly personal income (¥)
		<3000	238 (22.6)
		3000-4999	465 (44.2)
		5000-6999	185 (17.6)
		7000-9999	90 (8.6)
		≥10,000	74 (7.0)
	Type of work
		Frontline worker	701 (66.6)
		Management staff	351 (33.4)
	History of seasonal influenza vaccination
		No	842 (80.0)
		Yes	210 (20.0)
	Having at least one family member with a history of COVID-19
		No	1050 (99.8)
		Yes	2 (0.2)
	Age of the child (years)
		0-3	314 (29.8)
		4-6	176 (16.7)
		7-12	373 (35.5)
		13-17	189 (18.0)
Personal COVID-19 preventive measures in the past month
	Frequency of face mask wearing in public places and on transportation other than the workplace
		Every time	874 (83.1)
		Often	139 (13.2)
		Sometimes	36 (3.4)
		Never	3 (0.3)
	Frequency of face mask wearing when you have had close contact with other people in the workplace
		Every time	759 (72.1)
		Often	204 (19.4)
		Sometimes	82 (7.8)
		Never	7 (0.7)
	Self-reported sanitizing of hands, using soaps, liquid soaps, or alcohol-based sanitizer, after returning from public spaces or touching public installations
		Every time	606 (57.6)
		Often	277 (26.3)
		Sometimes	156 (14.8)
		Never	13 (1.2)
	Self-reported avoiding of social and meal gatherings with other people who do not live together
		No	430 (40.9)
		Yes	622 (59.1)
	Self-reported avoiding of crowed places
		No	355 (33.7)
		Yes	697 (66.3)