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Table 1 Anthropometric data and hormones according to gestational ages

From: Birth anthropometry and cord blood leptin in Korean appropriate-for-gestational-age infants born at ≥ 28 weeks’ gestation: a cross sectional study

 

28–33 Weeks (N = 38)

34–36 Weeks (N = 31)

37–40 Weeks (N = 36)

P-value

Pre-pregnancy BMI (kg/m2)

22.8 ± 0.6

22.4 ± 0.8

21.9 ± 0.6

0.635

Pregnancy BMI (kg/m2)

27.0 ± 0.6

27.5 ± 0.8

27.7 ± 0.7

0.923

Maternal age (years)

34.5 ± 0.9

32.9 ± 0.7

33.9 ± 0.7

0.368

Multiple gestation

17 (48.6%)

11 (36.7%)

5 (14.7%)

0.009

Gestational diabetes, n (%)

7 (18.4%)

2 (6.5%)

1 (2.8%)

0.090

Oligohydroamnios, n (%)

0 (0%)

0 (0%)

1 (2.8%)

0.646

Pregnancy-induced hypertension, n (%)

3 (7.9%)

4 (9.7%)

1 (2.8%)

0.619

Birth weight (g)

1605 ± 63

2416 ± 51

3137 ± 37

< 0.001

Birth weight SDS

0.12 ± 0.1

− 0.28 ± 0.11

0.22 ± 0.1

0.003

Birth length (cm)

41.3 ± 0.5

47.2 ± 0.4

49.7 ± 0.3

0.009

Head Circumference (cm)

29.4 ± 0.5

32.2 ± 0.2

34.2 ± 0.2

< 0.001

BMI

9.36 ± 0.2

10.95 ± 0.17

12.7 ± 0.15

< 0.001

BMI SDS

0.23 ± 0.14

−0.31 ± 0.13

−0.04 ± 0.1

0.013

IGF-1 (ng/mL)

10.01 ± 0.68

14.80 ± 1.34

17.58 ± 1.18

< 0.001

Leptin (ng/mL)

2.13 ± 0.59

5.25 ± 1.31

7.68 ± 0.92

< 0.001

  1. Continuous variables were expressed as mean ± standard error
  2. Abbreviations. BMI Body mass index, IGF-1 Insulin-like growth factor 1