Table 1. Sociodemographics of participants.

Demographic	Subcategory	Participant (N = 1000)
		n	%
Gender	men	505	51%
	women	495	49%
Age	20–29	191	19%
	30–39	215	22%
	40–49	189	19%
	50–59	212	21%
	60–69	193	19%
Region	Hokkaido/Tohoku	120	12%
	Kanto	340	34%
	Chubu	180	18%
	Kinki	160	16%
	Chugoku/Shikoku	90	9%
	Kyushu	110	11%
Area of residence	12 major cities	250	25%
	Cities with population > = 100k	410	41%
	Cities with population <100k	200	20%
	Rural areas	140	14%
Annual household income, JY	<5 million	328	33%
	> = 5 million & <8 million	259	26%
	> = 8 million	166	17%
	N/A	247	25%
Educational attainment	Junior high school or lower	74	7%
	High school	430	43%
	College or higher	493	49%
	N/A	3	1%
Occupation	Self-employed	134	13%
	Homemaker	164	16%
	Employed	587	59%
	Unemployed	275	28%
	N/A	4	1%

JY = Japanese Yen; N/A = data not available.