Table 1.

Demographic characteristics of the participants. All participants were native Japanese speakers residing in Japan at the time of the study

Participant N		71
Gender
	Female	30	41%
	Male	41	58%
Age
	20 to 29	69	97%
	30 to 39	2	3%
Currently a college/graduate student?
	Yes	64	90%
	No	7	10%
Personal income
	0–100,000 yen	57	80%
	100,001–200,000 yen	12	17%
	200,001–300,000 yen	2	3%
	300,001–400,000 yen	0	0%
	400,001–500,000 yen	0	0%
	> 500,000 yen	0	0%