Gemelos: Antropometría al nacimiento según sexo y edad gestacional. Curvas y tablas por desviaciones

Abstract

Objective. To design intrauterine growth curves and charts for twins, according to sex and weeks of gestation, and examine the perinatal aspects of these pregnancies. Material and methods. A cross-sectional, descriptive approach was employed to analyze the anthropometric data at birth (weight, length and head circumference) of 1116 pairs of healthy twins born of event-free pregnancies at Hospital San Carlos in Madrid, Spain. Results. The growth curves and charts of a total of 1056 twin boys and 1084 twin girls are presented according to means and standard deviations (+2SD, +1SD, -2SD, -1SD). Conclusion. Each population group should have their own fetal growth curves to enable the classification of newborns as preterm, full-term or post-term and as large, normal and small in size with regard to the gestational age.