Table 1 Demographic characteristics

Age (years old)

Gender

Educational level

18–29

30–39

40–49

≥ 50

Male

Female

Junior high school and below

High school or technical secondary school

Junior College or undergraduate

Postgraduate and above

364(52.5)

106(15.3)

108(15.6)

115(16.6)

148(21.4)

545(78.6)

71(10.2)

98(14.1)

512(73.9)

12(1.7)

Profession

Work

Retire

Unemployment

Students

391(56.4)

82(11.8)

33(4.8)

187(27.0)