Comparación antropométrica del crecimiento fetal medio de los embarazos gemelares y únicos, por sexo y edad gestacional
Anthropometric comparison of the averaged fetal growth of pregnancies of twins against single pregnancies, according to sex and gestational duration time

Abstract

Objective: To compare fetal growth averaged rythm of single pregnancies with those of pregnancies of twins, according to sex and gestational duration time; and comparing twin male and female newborns. Material and method: Comparisons are taken from the averaged weekly growth of 1.056 male twins and 1.084 twin female newborns, against 19.982 single males and 18.636 single female newborns, respectively. These comparisons are also taken from the 1.056 male twins and the 1.084 female twins. Results: The significant differences between single newborns and twins according to weight averaged growth, seize and cranium perimeter start from the thirty-fourth gestational week. Once male and female twins are compared, significant differences appear in weight and in averaged seize since the thirty-fourth gestational week. However, when cranium perimeters are compared, significant differences don't exist. Conclusion: Each country must have their own fetal growth curves for clasifying newborns accurately.