Skip to main content

Table 5 Objective BMI classification as a function of subjective BMI and body image among 11- to 15-year-old adolescents in Germany, stratified by gender in KiGGS

From: Applying a correction procedure to the prevalence estimates of overweight and obesity in the German part of the HBSC study

aijKKiGGS*

BMIKiGGSsub ϵ

I1

I2

I3

I4

I5

Q jk HBSC

I1

I2

I3

I4

I5

Q jk HBSC

I1

I2

I3

I4

I5

Q jk HBSC

 

All

Boys

Girls

BMIKiGGS ϵ

BI ¯ = 1 too thin

I 1

59.6%

15.4%

0.9%

  

17.8%

46.1%

16.1%

0.5%

  

14.8%

76.1%

14.5%

1.9%

  

22.3%

I 2

22.7%

42.3%

16.9%

  

22.0%

25.6%

44.0%

14.8%

  

16.4%

19.2%

39.8%

21.9%

  

30.4%

I 3

17.7%

42.3%

82.2%

100.0%

100.0%

59.7%

28.3%

39.9%

84.6%

100.0%

 

68.0%

4.7%

45.6%

76.2%

100.0%

1.8%

47.3%

I 4

     

0.4%

     

0.6%

     

0.0%

I 5

     

0.1%

     

0.2%

     

0.0%

BI ¯ = 2 exactly the right weight

I 1

20.5%

4.2%

0.1%

 

9.2%

5.2%

19.7%

9.2%

0.2%

 

7.6%

5.0%

23.2%

    

5.5%

I 2

39.5%

34.1%

1.6%

  

8.5%

31.5%

26.8%

1.3%

  

7.7%

68.3%

40.2%

1.9%

  

9.5%

I 3

40.0%

61.8%

96.6%

49.1%

67.9%

84.8%

48.8%

64.1%

96.0%

59.0%

68.5%

85.3%

8.5%

59.8%

97.3%

28.5%

65.8%

84.1%

I 4

  

1.8%

44.1%

22.9%

1.3%

  

2.5%

30.8%

19.4%

1.9%

  

0.9%

71.5%

34.2%

0.6%

I 5

  

0.0%

6.8%

 

0.2%

  

0.0%

10.2%

 

0.2%

     

0.3%

BI ¯ = 3 too fat

I 1

25.5%

 

0.1%

  

1.1%

31.5%

 

0.3%

  

1.1%

     

1.1%

I 2

 

19.6%

0.3%

  

1.7%

     

1.0%

 

26.4%

0.5%

  

2.1%

I 3

36.5%

80.4%

87.4%

8.2%

4.3%

78.6%

21.5%

100.0%

84.3%

9.0%

5.5%

73.0%

100.0%

73.6%

89.2%

7.2%

3.1%

82.3%

I 4

38.0%

 

11.0%

64.0%

11.2%

12.2%

47.0%

 

14.6%

59.9%

15.3%

16.0%

  

8.9%

68.9%

7.2%

9.6%

I 5

  

1.2%

27.8%

84.5%

6.5%

  

0.8%

31.1%

79.2%

9.0%

  

1.4%

23.9%

89.7%

4.8%

  1. * a ijK KiGGS = P BM I KiGGS I i BM I sub KiGGS I j , B I KiGGS = k
  2. BMIKiGGS: Body mass index.
  3. BMIKiGGSsub: Body mass index calculated from self-reported weight and height.
  4. I1 … I5: i-th category for BMI and j-th category for BMIsub (i.e., 1 = extremely underweight, 2 = underweight, 3 = normal weight, 4 = overweight, 5 = obese).
  5. BIKiGGS: Body image.
  6. QjkHBSC : Prevalences of the subjective BMI categories j in the group of people with Body Image BI = k in HBSC.