The influence of maternal factors on placental weight.
The influence of maternal factors on placental weight has been studied. Their effect may be partially masked as it was not possible to eliminate the effect of fetal factors. For a narrow range of birthweights placental weight correlates increasingly closely with maternal pregnant weight, non-pregnant weight, and weight-for-height; it correlates more closely with all of these than with the baby's birthweight. Maternal obesity has a significant effect on placental weight independent of the possible fetal effect. Maternal height and weight gain in pregnancy share no such effect. Pregnancy weight gain is a poor indicator of feto-placental development.
D001724:Birth Weight; D001827:Body Height; D001835:Body Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D009929:Organ Size; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy