Table 1 Maternal and neonatal clinical characteristics

Ethnicity

Caucasian

Caucasian

Maternal age (years)

32 ± 3

34 ± 4

0.13

Maternal height (m)

1.6 ± 0.09

1.6 ± 0.04

0.42

Maternal weight (before pregnancy) (kg)

51.3 ± 10

98.5 ± 13

< 0.0001

BMI (before pregnancy) (kg/m²)

21.2 ± 3.2

35.8 ± 4.2

< 0.0001

Gestational age at delivery (weeks of amenorrhea)

39 ± 1.1

38 ± 1

0.085

Placental weight (g)

669.5 ± 135.2

714.8 ± 183.1

0.27

Placental length (cm)

19.3 ± 1.9

18.6 ± 2.3

0.32

Placental width (cm)

16.7 ± 1.6

17.3 ± 1.2

0.23

Placental thickness (cm)

2.1 ± 0.8

2.7 ± 1.1

0.21

Infant’s gender (% male)

50

42

0.34

Birthweight of male infants (g)

3375.56 ± 298.22

3282 ± 165.4

0.26

Birthweight of female infants (g)

3415.6 ± 541.6

3459.6 ± 418.3

0.50

Placental weight for male infants (g)

680.8 ± 132.8

670.1 ± 88.2

0.50

Placental weight for female infants (g)

653.1 ± 158.8

746.8 ± 231.1

0.34

Birthweight/placental weight ratio for male infants

5.4 ± 0.5

4.95 ± 0.52

0.09

Birthweight/placental weight ratio for female infants

5.3 ± 0.75

4.9 ± 1.2

0.20