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Table 3 Socio-demographic characteristics of tobacco users and non-users among Korean adolescents

From: Prevalence, correlates, and associated psychological problems of substance use in Korean adolescents

 

Tobacco users (n = 13,967), %

Non-users (n = 58,094), %

OR (95 % CI)

p-value

Age (years), mean (95 % CI)

15.70 (1.54)

14.83 (1.75)

1.35 (1.34–1.35)

<0.001

Sex, male, %

74.4

46.6

3.33 (3.31–3.25)

<0.001

Area of residence, %

    

 Rural

7.4

6.3

ref

 

 Small city

50.3

49.8

0.86 (0.86–0.87)

<0.001

 Large city

42.4

43.9

0.83 (0.82–0.84)

<0.001

Paternal Education, %

    

 Middle school education or lower

5.5

3.0

ref

 

 High school education

43.3

34.8

0.67 (0.66–0.68)

<0.001

 College degree or higher

51.2

62.2

0.45 (0.44–0.45)

<0.001

Maternal Education, %

    

 Middle school education or lower

4.5

2.6

ref

 

 High school education

53.4

45.2

0.69 (0.68–0.70)

<0.001

 College degree or higher

42.1

52.1

0.47 (0.46–0.48)

<0.001

Residential type, %

    

 With family

94.2

96.4

ref

 

 With relatives

1.6

0.7

2.37 (2.31–2.43)

<0.001

 With friends, alone, domitory

3.2

2.6

1.24 (1.22–1.26)

<0.001

 Facility

1.0

0.3

3.32 (3.22–3.43)

<0.001

Socio–economic status, %

    

 Low

7.1

3.0

ref

 

 Low-Middle

18.8

13.1

0.62 (0.61–0.62)

<0.001

 Middle

46.1

48.8

0.41 (0.40–0.41)

<0.001

 High-Middle

21.0

26.8

0.34 (0.33–0.34)

<0.001

 High

7.0

8.2

0.37 (0.37–0.38)

<0.001

Academic achievement, %

    

 Low

20.1

8.7

ref

 

 Low-Middle

28.8

22.9

0.54 (0.54–0.55)

<0.001

 Middle

24.7

28.8

0.37 (0.36–0.37)

<0.001

 High-Middle

18.0

26,5

0.29 (0.29–0.30)

<0.001

 High

8.4

13.2

0.27 (0.27–0.28)

<0.001

Alcohol use

82.1

33.2

9.22 (9.16–9.28)

<0.001

  1. OR odd ratios, CI confidence intervals