Human fetal weight and placental weight growth curves. A mathematical analysis from a population at sea level.
A mathematical analysis of human fetal and placental growth curves was made on data collected prospectively from a population at sea level. Both the fetal and placental growth curves can best be described by a form of the logistic equation inhibited growth model. The fetal growth rate reaches its maximum approximately 4 weeks after the placental growth rate has reached its maximum. Growth rate constants were calculated for several populations at various altitudes.
D000531:Altitude; D001724:Birth Weight; D005260:Female; D005333:Fetus / Q000502:physiology*; D005865:Gestational Age; D006128:Growth; D006801:Humans; D007231:Infant, Newborn; D008433:Mathematics; D008954:Models, Biological; D009929:Organ Size; D010920:Placenta / Q000033:anatomy & histology / Q000502:physiology*; D011247:Pregnancy; D011446:Prospective Studies