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Table 1 Demographic and socioeconomic characteristics of the subjects

From: The Relationship between Injury and Socioeconomic Status in Reference to the Fourth Korean National Health and Nutrition Examination Survey

Variables Categories Number (%)
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)
  1. including homemakers and students.