Table 9 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 perinatal factors

Pregnancy duration

425

423

 < 37 week

1

19

6

4

0

40

9

9

0.35

1.14

-0.13

0.90

0.13

0.77

-0.08

0.87

0.24%

4.47%

1.41%

0.94%

0,00%

9.46%

2.13%

2.13%

37–42 week

40

276

59

19

1

250

56

56

0.34

1.23

-0.05

0.95

0.08

0.91

0.03

1.00

9.41%

64.94%

13.88%

4.47%

0.24%

59.1%

13.24%

13.24%

 > 42 week

0

1

0

0

0

0

2

0

0.74

0.59

0.20

0.20

0.01

0.76

0.36

0.03

0,00%

0.24%

0,00%

0,00%

0,00%

0,00%

0.47%

0,00%

χ²

6.15

10.84

F

0.11

0.24

0.10

0.42

p

0.41

0.09

p

0.90

0.79

0.90

0.66

At least one disease during pregnancy

454

454

No

27

223

46

13

0

217

53

38

0.31

1.14

-0.12

0.82

0.08

0.88

-0.06

0.85

5.95%

49.12%

10.13%

2.86%

0,00%

47.8%

11.67%

8.37%

Yes

18

92

24

11

1

97

19

29

0.36

1.39

0.02

1.15

0.10

0.92

0.13

1.22

3.96%

20.26%

5.29%

2.42%

0.22%

21.37%

4.19%

6.39%

χ²

4,74

7.24

t

-0.40

-1.54

-0.24

-1.93

p

0.19

0.06

p

0.69

0.12

0.81

0.05

At least one disease before pregnancy

456

533

No

33

241

48

16

0

237

57

42

0.30

1.19

-0.12

0.89

0.06

0.87

-0.05

0.92

7.24%

52.85%

10.53%

3.51%

0,00%

52.2%

12.56%

9.25%

Yes

12

76

22

8

1

77

15

25

0.40

1.31

0.04

1.06

0.14

0.97

0.16

1.14

2.63%

16.67%

4.82%

1.75%

0.22%

16.96%

3.3%

5.51%

χ²

2.43

8.66

t

-0.76

-1.52

-0.75

-2.00

p

0.49

0.03

p

0.45

0.13

0.45

0.05

Prenatal stress

454

440

No

35

229

47

17

1

237

44

47

0.28

1.22

-0.09

0.95

0.06

0.90

-0.01

1.00

7.71%

50.44%

10.35%

3.74%

0.22%

52.2%

9.69%

10.35%

Yes

10

86

23

7

0

77

28

20

0.44

1.23

-0.05

0.93

0.14

0.87

0.02

0.95

2.2%

18.94%

5.07%

1.54%

0,00%

16.96%

6.17%

4.41%

Χ

1.65

6.64

t

-1.31

-0.40

-0.89

-0.30

p

0.64

0.08

p

0.19

0.69

0.38

0.76

Type of pregnancy

437

435

Single

39

294

65

19

1

288

68

58

0.33

1.20

-0.08

0.92

0.08

0.88

-0.01

0.95

8.92%

67.28%

14.87%

4.35%

0.23%

66.21%

15.63%

13.33%

Twin

5

12

1

2

0

17

1

2

-0.31

1.28

-0.46

0.82

-0.10

0.77

-0.43

0.72

1.14%

2.75%

0.23%

0.46%

0,00%

3.91%

0.23%

0.46%

χ²

7.53

2.49

t

2.31

1.82

0.89

1.97

p

0.06

0.48

p

0.02

0.07

0.37

0.04

Type of delivery

434

434

Vaginal

32

207

51

18

1

204

55

50

0.35

1.26

-0.02

0.99

0.10

0.93

0.04

1.02

7.34%

47.48%

11.7%

4.13%

0.23%

46.79%

12.61%

11.47%

C-section

11

98

16

3

0

99

16

11

0.21

1.07

-0.27

0.67

0.02

0.75

-0.16

0.73

2.52%

22.48%

3.67%

0.69%

0,00%

22.71%

3.67%

2.52%

χ²

4.70

7.41

t

1.11

2.64

0.83

2.06

p

0.20

0.06

p

0.27

0.01

0.41

0.04

Birthweight

441

441

 < 2500

6

10

2

2

0

16

2

2

-0.20

1.49

-0.32

0.95

0.01

1.05

-0.29

0.83

1.36%

2.27%

0.45%

0.45%

0,00%

3.63%

0.45%

0.45%

2500–4000

36

255

52

18

1

250

60

51

0.30

1.21

-0.08

0.92

0.06

0.89

-0.01

0.97

8.16%

57.82%

11.79%

4.08%

0.23%

56.69%

13.61%

11.56%

 > 4000

2

42

14

2

0

40

10

9

0.54

1.12

-0.09

0.92

0.24

0.82

0.07

0.95

0.45%

9.52%

3.17%

0.45%

0,00%

9.07%

2.27%

2.04%

χ²

16.25

3.38

t

2.85

0.64

1.18

1.06

p

0.02

0.97

p

0.06

0.53

0.31

0.35

Breastfeeding

443

441

Yes

40

283

60

20

1

282

64

54

0.30

1.22

-0.10

0.92

0.07

0.89

-0.02

0.96

9.03%

63.88%

13.54%

4.51%

0.23%

63.95%

14.51%

12.24%

No

4

26

8

2

0

25

8

7

0.38

1.20

-0.05

0.83

0.18

0.83

0.02

0.87

0.9%

5.87%

1.81%

0.45%

0,00%

5.67%

1.81%

1.59%

χ²

0.76

1.21

t

-0.40

-0.35

-0.80

-0.24

p

0.87

0.75

p

0.69

0.73

0.43

0.81

Siblings

434

434

Yes

33

238

47

16

1

238

51

43

0.27

1.18

-0.13

0.91

0.05

0.85

-0.05

0.93

7.6%

54.84%

10.83%

3.69%

0.23%

54.84%

11.75%

9.91%

No

11

66

19

4

0

68

17

16

0.35

1.25

-0.03

0.93

0.10

0.90

0.04

1.01

2.53%

15.21%

4.38%

0.92%

0,00%

15.67%

3.92%

3.69%

χ²

1.73

1.09

t

-0.60

-0.89

-0.57

-0.73

p

0.63

0.78

p

0.55

0.37

0.57

0.46

Weight gain during pregnancy

434

434

Exceeded

2

22

12

5

0

22

9

9

0.82

1.30

0.33

1.12

0.38

1.17

0.53

1.22

0.46%

5.07%

2.76%

1.15%

0,00%

5.07%

2.07%

2.07%

Non-exceeded

42

279

54

18

1

277

59

57

0.27

1.21

-0.12

0.91

0.05

0.85

-0.06

0.93

9.68%

64.29%

12.44%

4.15%

0.23%

63.82%

13.59%

13.13%

χ²

12.79

4.19

t

2.77

2.96

2.29

3.76

p

0.01

0.24

p

0.01

 < 0.01

0.02

 < 0.001