GESTATION-SPECIFIC LIVE-BORN SINGLETON NEWBORNS BIRTH WEIGHT, LENGTH AND HEAD CIRCUMFERENCE PERCENTILES AND CURVES (ARKHANGELSK COUNTY BIRTH REGISTRY DATA)

Abstract

Birth weight, length and head assessment are important for postnatal confirmation of fetal growth retardation. In Russia, there has so far not been sex-specific, population-based birth weight, length and head circumference percentiles and curves for singleton newborns. The aim of this study was to develop percentiles and curves for live-born newborns born at 28-42 weeks of gestation and compare these to other available data from the literature. Data of the Arkhangelsk County Birth Registry (2012-2014), Russia, were used. In total, we included 42116 live-born newborns by both sex without congenital malformation that could potentially influence on the results of anthropometry at birth. Sex-specific birth weight, length and head circumference percentiles and curves were created between 28 and 42 weeks of gestation. Data on mean and standard deviation for each week of gestation both for male and female newborns are also presented. As we used data from a comprehensive, population-based birth registry, percentiles and curves in our study are representative also for other regions of Russia.