Table 8 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 lifestyle factors

Eating behaviour

454

454

Bad

24

167

44

16

1

165

44

40

0.39

1.25

-0.05

0.89

0.14

0.89

0.02

0.93

5.29%

36.78%

9.69%

3.52%

0.22%

36.34%

9.69%

8.81%

Good

21

148

26

8

0

149

28

27

0.23

1.18

-0.12

1.00

0.02

0.89

-0.03

1.05

4.63%

32.6%

5.73%

1.76%

0,00%

32.82%

6.17%

5.95%

χ²

3.61

3.27

t

1.40

0.79

1.40

0.59

P

0.31

0.35

p

0.16

0.43

0.16

0.55

Physical activity

454

Bad

42

242

58

17

1

244

61

53

0.31

1.23

-0.08

0.93

0.05

0.88

-0.02

0.96

9.25%

53.3%

12.78%

3.74%

0.22%

53.74%

13.44%

11.67%

Good

3

73

12

7

0

70

11

14

0.37

1.21

-0.08

0.98

0.22

0.94

0.06

1.08

0.66%

16.08%

2.64%

1.54%

0,00%

15.42%

2.42%

3.08%

χ²

8.08

2.01

t

-0.46

0.08

-1.63

-0.66

P

0.04

0.57

p

0.64

0.94

0.10

0.51

Screen time

454

454

 > 2 h

23

180

51

13

0

184

39

43

0.42

1.25

0.01

1.02

0.14

0.90

0.11

1.09

5.07%

39.65%

11.23%

2.86%

0,00%

40.53%

8.59%

9.47%

 ≤ 2 h

22

135

19

11

1

130

33

24

0.18

1.17

-0.20

0.81

0.01

0.88

-0.16

0.79

4.85%

29.74%

4.19%

2.42%

0.22%

28.63%

7.27%

5.29%

χ²

7.38

2.86

t

2.03

2.44

1.57

2.92

P

0.06

0.41

p

0.04

0.02

0.12

0.003

Sleep length

432

432

 < 9 h

35

267

59

19

1

265

61

53

0.34

1.21

-0.08

0.93

0.10

0.87

-0.01

0.97

8.1%

61.81%

13.66%

4.4%

0.23%

61.34%

14.12%

12.27%

 ≥ 9 h

6

35

8

3

0

38

7

7

0.24

1.24

-0.13

0.89

0.01

0.99

0.01

0.99

1.39%

8.1%

1.85%

0.69%

0,00%

8.8%

1.62%

1.62%

χ²

0.37

0.41

t

0.52

0.37

0.68

-0.14

P

0.94

0.93

p

0.60

0.71

0.50

0.89