Table 1 Demographic and socioeconomic characteristics of the subjects

Sex

Male

5,047 (42.6)

Female

6,790 (57.4)

Age (years old)

20-29

2,097 (17.7)

30-39

3,470 (29.3)

40-49

3,386 (28.6)

50-59

2,884 (24.4)

Marital status

Married

9,018 (76.5)

Bereaved

244 (2.1)

Divorced

400 (3.4)

Never married

2,134 (18.1)

Household income per year

<5

225 (2.0)

(1 million KRW)

5 - < 10

586 (5.3)

10 - < 20

1,795 (16.3)

20 - < 50

5,711 (51.8)

≥ 50

2,712 (24.6)

National basic livelihood security

Current recipient

323 (2.7)

Former recipient

284 (2.4)

Non-recipient

11,203 (94.9)

Health insurance

National health insurance

11,472 (97.6)

Medical aid

279 (2.4)

Home ownership

No home

3,899 (33.0)

1 home

6,708 (56.8)

More than 1 home

1,203 (10.2)

Home value (x 1 million KRW)

< 50

925 (12.3)

50 - < 100

1,494 (19.9)

100 - < 200

2,120 (28.2)

200 - < 500

2,084 (27.7)

≥ 500

898 (11.9)

Education

≤ Elementary

1,382 (11.7)

Middle

1,282 (10.8)

High

5,124 (43.2)

≥University

4,041 (34.2)

Occupation

Manager, professional, and administrators

1,800 (16.4)

Clerks

1,179 (10.7)

Service and sales workers

1,886 (17.1)

Skilled agricultural, forestry, and fishery workers

610 (5.5)

Craft, equipment, machine operating, and assembling workers

1,413 (12.8)

Elementary workers

950 (8.6)

Unemployed^†

3,163 (28.8)

Employment type

Salaried workers

5,064 (64.1)

Self-employed

2,384 (30.2)

Family business without pay

456 (5.8)

Status of salaried workers

Fully employed

3,636 (72.3)

Temporary

845 (16.8)

Day worker

547 (10.9)

Working hours

Full-time

4,216 (84.2)

Part-time

792 (15.8)