Table 1.

Characteristics of study participants.

Characteristic			Participants (n=3914) or value
Gender, n (%)
	Men	1953 (49.9)
	Women	1961 (50.1)
Age (years), n (%)
	20-29	567 (14.5)
	30-39	721 (18.4)
	40-49	891 (22.8)
	50-59	785 (20.1)
	60-69	950 (24.3)
Age, mean (SD)			46.9 (13.6)
Highest level of education, n (%)
	Junior high school	86 (2.2)
	High school	981 (25.1)
	2-year college	858 (21.9)
	College or university	1806 (46.1)
	Graduate	183 (4.7)
Occupation, n (%)
	Self-employed	191 (4.9)
	Managerial and administrative	166 (4.2)
	Professional and technical	463 (11.8)
	Other (routine and manual)	1367 (34.9)
	Part-time	474 (12.1)
	Homemaker	652 (16.7)
	Student	131 (3.3)
	Unemployed	470 (12.0)
Prefecture status, n (%)
	Under a state of emergency	2387 (61.0)
	Not under a state of emergency	1527 (39.0)
Health literacy score, mean (SD)			27.4 (9.4)