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Table 2 Prevalence of underweight, overweight and obesity diagnosed according to IOTF (Body weight status) and according to McCarthy criteria (Body fat status), and association between body composition parameters and genetic factors

From: FTO and MC4R polymorphisms, and selected pre-, peri- and postnatal factors as determinants of body mass index and fatness in children: a thorough analysis of the associations

Variable

Body weight status

Body fat status

 

BMI z scores

FMI z scores

FFMI z scores

FatM z scores

n

 

Underweight

Proper weight

Overweight

Obesity

n

Underweight

Proper weight

Overweight

Obesity

 

\(\overline{x }\)

SD

\(\overline{x }\)

SD

\(\overline{x }\)

SD

\(\overline{x }\)

SD

FTO

456

    

452

             

AA

 

All

13

67

13

4

 

0

69

16

12

 

0.20

1.22

-0.18

0.86

0.05

0.85

-0.13

0.87

   

2.85%

14.69%

2.85%

0.88%

 

0,00%

15.2%

3.52%

2.64%

         
  

Girls

7

32

4

0

 

32

8

3

32

         
   

3.21%

14.68%

1.83%

0,00%

 

14.75%

3.69%

1.38%

14.75%

         
  

Boys

6

35

9

4

 

0

37

8

9

         
   

2.52%

14.71%

3.78%

1.68%

 

0,00%

15.61%

3.38%

3.8%

         

AT

 

All

15

146

32

15

 

1

139

32

34

 

0.40

1.24

0.02

1.05

0.08

0.90

0.11

1.11

   

3.29%

32.02%

7.02%

3.29%

 

0.22%

30.62%

7.05%

7.49%

         
  

Girls

6

69

15

10

 

71

11

17

71

         
   

2.75%

31.65%

6.88%

4.59%

 

32.72%

5.07%

7.83%

32.72%

         
  

Boys

9

77

17

5

 

1

68

21

17

         
   

3.78%

32.35%

7.14%

2.1%

 

0.42%

28.69%

8.86%

7.17%

         

TT

 

All

17

104

25

5

 

0

106

24

21

 

0.29

1.20

-0.15

0.83

0.12

0.92

-0.07

0.87

   

3.73%

22.81%

5.48%

1.1%

 

0,00%

23.35%

5.29%

4.63%

         
  

Girls

15

47

10

3

 

63

5

7

63

         
   

6.88%

21.56%

4.59%

1.38%

 

29.03%

2.3%

3.23%

29.03%

         
  

Boys

2

57

15

2

 

0

43

19

14

         
   

0.84%

23.95%

6.3%

0.84%

 

0,00%

18.14%

8.02%

5.91%

         
  

χ2

6.25

    

2.27

   

F

0.98

2.26

0.19

2.63

  

p

0.40

    

0.89

   

p

0.38

0.11

0.82

0.07

MC4R

454

     

455

             

CC

  

2

14

5

3

 

0

14

4

6

 

0.81

1.32

0.35

1.32

0.41

1.02

0.54

1.46

   

0.44%

3.08%

1.1%

0.66%

 

0,00%

3.1%

0.88%

1.33%

         

CT

  

13

95

23

9

 

0

96

22

22

 

0.38

1.19

-0.06

0.92

0.15

0.89

-0.02

0.92

   

2.86%

20.93%

5.07%

1.98%

 

0,00%

21.24%

4.87%

4.87%

         

TT

  

30

208

40

12

 

1

204

46

37

 

0.24

1.21

-0.13

0.90

0.02

0.88

-0.05

0.95

   

6.61%

45.81%

8.81%

2.64%

 

0.22%

45.13%

10.18%

8.19%

         
  

χ2

5.30

    

3.63

   

F

2.72

3.11

2.74

4.09

  

p

0.51

    

073

   

p

0.07

0.04

0.07

0.02

               

CCvsTTa

  

CC vs CT

CCvs TTa

  1. \(\overline{x }\) – mean, BMI Body Mass Index, FMI Fat Mass Index, FFMI Fat Free Mass Index, FatM Fat Mass in kg
  2. a significant differences in the post hoc test