Gender

Male

1524

53.6

Female

1320

46.4

Type of family

Parents

2709

95.3

Single parent

107

3.8

Remarried

16

0.6

No parents

7

0.2

No response

5

0.2

Siblings

Yes

2587

91.0

No

234

8.2

No response

23

0.8

Educational level of father

Middle school

159

5.5

High school

1207

42.4

University

1244

43.7

Graduate school

178

6.3

No response

56

2.0

Educational level of mother

Middle school

190

6.7

High school

1695

59.6

University

853

30.0

Graduate school

41

1.5

No response

65

2.3

Monthly income

<100

194

6.8

(10,000 won)

100 - 200

789

27.7

200 - 300

883

31.0

300 - 400

483

17.0

400 - 500

287

10.1

≥500

135

4.7

No response

73

2.6