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Table 2 The predicted prevalence of obesity (%) for every category of a characteristic by education level among women: Korea National Health and Nutrition Examination Survey, 2010–2014 (N = 14,577)

From: Factors contributing to educational differences in obesity among women: evidence from South Korea

Characteristics

Less-educated

Highly-educated

Rate

(95% CI)

p

Rate

(95% CI)

p

Demographic

 Age, years

  25–34

24.7

(20.7-28.7)

<.001

14.1

(11.5-16.6)

<.001

  35–44

27.6

(24.9-30.2)

<.001

17.5

(14.8-20.2)

<.001

  45–54

32.7

(30.5-34.9)

<.001

22.4

(18.2-26.7)

<.001

  55–64

39.0

(36.7-41.3)

<.001

25.7

(18.8-32.6)

<.001

   ≥ 65

38.4

(36.0-40.8)

<.001

40.3

(27.9-52.7)

<.001

 Marital status

  Married

33.1

(31.7-34.4)

<.001

24.7

(21.2-28.2)

<.001

  Non-married

29.8

(27.6-32.1)

<.001

21.6

(16.9-26.3)

<.001

 Residential area

  Urban

31.4

(30.0-32.7)

<.001

23.1

(19.9-26.2)

<.001

  Rural

35.6

(33.3-37.8)

<.001

26.2

(20.0-32.4)

<.001

Socioeconomic

 Occupational status

  Not employed

32.9

(31.3-34.6)

<.001

23.4

(20.0-26.9)

<.001

  Employed

31.5

(29.9-33.1)

<.001

24.1

(20.2-28.0)

<.001

 Household income

  Median or higher

30.2

(28.5-31.9)

<.001

20.0

(16.9-23.1)

<.001

  Below median

34.3

(32.6-36.0)

<.001

27.3

(22.9-31.7)

<.001

Lifestyle

 Current smoking

  

<.001

  

<.001

 Non-smoking

32.4

(31.1-33.6)

<.001

23.3

(20.2-26.4)

<.001

 Smoking

29.3

(24.8-33.8)

<.001

30.3

(20.1-40.5)

<.001

 Risk from alcohol intake

  No or low

30.7

(29.4-32.1)

<.001

23.1

(19.9-26.3)

<.001

  Medium or higher

36.0

(33.6-38.4)

<.001

25.7

(21.0-30.4)

<.001

 Walking exercise

  Inactive

32.6

(31.2-34.0)

<.001

22.7

(19.4-26.0)

<.001

  Active

31.5

(29.6-33.4)

<.001

25.7

(21.4-30.0)

<.001

 Self-perceived stress

  Not stressed

32.0

(30.8-33.2)

<.001

23.0

(19.8-26.2)

<.001

  Stressed

35.4

(30.6-40.3)

<.001

37.1

(27.5-46.7)

<.001

N

10,806

   

3771

 
  1. Note: N number, Obesity body mass index ≥25, CI confidence interval
  2. Less-educated denoted high school education or less. Highly-educated denoted college degree or higher
  3. All analyses were conducted considering the complex survey design
  4. Non-married includes never-married, separated, widowed and divorced
  5. Not employed included participants who had no paid work
  6. Income was based on equivalized household income at each survey year
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