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Table 3 Sensitivity, specificity, and odds ratios for impaired glucose profile (IGP) vs normal glucose profile (NGP) levels for both sex at Tanner's stages 3 to 5 with a selected cutoff point for BMI values at the 85th percentile.

From: Impact of obesity on glucose and lipid profiles in adolescents at different age groups in relation to adulthood

Tanner's stages

Cutoff point for BMI values

Sensitivity

Specificity

Odds ratio

 

> 85th

< 85th.

   

Tanner III

     

Males

     

IGP(n = 47)

43

4

 

91%

 

NGP (n = 54)

19

35

64.8%

  

Total (n = 101)

62

39

  

19.6

Females

     

IGP(n = 43)

38

5

 

88.4%

 

NGP (n = 44)

12

32

72.7 %

  

Total (n = 87)

50

37

  

20.3

Tanner IV

     

Males

     

IGP(n = 48)

45

3

 

93.5%

 

NGP (n = 48)

18

30

71.4%

  

Total (n = 96)

63

33

  

23.7

Females

     

IGP(n = 45)

41

4

 

93.2%

 

NGP (n = 45)

17

29

64.4%

  

Total (n = 90)

58

32

  

17.5

Tanner V

     

Males

     

IGP(n = 54)

49

5

 

90.7%

 

NGP (n = 55)

22

33

60%

  

Total (n = 109)

71

38

  

14.7

Females

     

IGP(n = 46)

42

4

 

87.9%

 

NGP (n = 55)

26

29

61.8%

  

Total (n = 101)

68

33

  

11.7

Adults

     

Males

     

IGP(n = 69)

63

6

 

86.4%

 

NGP (n = 63)

25

38

64.3%

  

Total (n = 132)

98

44

  

16.0

Females

     

IGP(n = 63)

57

6

 

85%

 

NGP (n = 59)

25

34

69.5%

  

Total (n = 122)

82

40

  

12.9

  1. An odds ratio of 19.6 means that the risk of IFG is 19.6 times higher in Tanner's stage 3 adolescents who are having a BMI > 85th than in those with a BMI < than 85th percentile.