Table 2. Demographic characteristics.

Variables	Class	N	%	Variables	Class	N	%
Gender	Male	92	47.2	Age	Total	195	100.0
	Female	103	52.8	Residence	Buk-myeon, Uljin-gun	62	31.8
	Total	195	100.0		Jukbyeon-myeon, Uljin-gun	33	16.9
Age	20s’	18	9.2		Uljin-eup, Uljin-gun	95	48.7
	30s’	41	21.0		Pyeonghae-eup, Uljin-gun	1	0.5
	40s’	37	19.0		Geunnam-myeon, Uljin-gun	1	0.5
	50s’	33	16.9
	60s’	24	12.3		Other	3	1.5
	Above 70s’	42	21.5		Total	195	100.0