Table 1. Basic information of respondents

Question Response options Number %
Age 20 43 20.4
30 41 19.4
40 43 20.4
50 43 20.4
> 60 41 19.4
Sex Male 104 49.3
Female 107 50.7
Place of residence Seoul 44 20.9
Busan 44 20.9
Daegu 40 19.0
Incheon 42 19.9
Gwangju 41 19.4