TABLE 1

Demographic data

Data are expressed as mean ± S.D.

Term Placentas (>37 Weeks of Gestation)
Preterm Placentas
32-37 Weeks of Gestation
23-32 Weeks of Gestation
Number 32 16 10
Mean age of the pregnant 29.0 ± 5.8 28.5 ± 6.3 27.2 ± 6.5
Mean weeks of gestation 39 + 3 days* 34 + 4 days* 28 + 3 days*
Number of gravidities 2.04 ± 0.94 2.13 ± 1.46 2.46 ± 1.89
Number of births before 1.81 ± 0.84 1.71 ± 0.73 2.07 ± 1.75
BMI (at the beginning of gravidity) 24.11 ± 5.82 23.65 ± 3.74 21.88 ± 4.00
BMI (at the end of gravidity) 29.14 ± 5.68* 27.75 ± 3.22* 24.34 ± 3.89*
Cesarean sections (%)
63
73
78

  • BMI, body mass index.

  • ↵* p < 0.05.