Maternal weight gain and fetal growth

Abstract

Extrinsic factors such as maternal nutrition may affect fetal growth giving rise to short and long-term consequences. The present study sets out to explore the inter-relationship between antenatal weight gain, in part dependant on maternal nutrition, and fetal growth as determined by birth weight. The study population included 21573 women who delivered their singleton child at term during 1999-2006. This population was subdivided into 16 subgroups according to BMI and antenatal weight gain. The study confirms that irrespective of maternal BMI, there is a statistically significant trend towards low birth weight with decreasing antenatal weight gain and conversely macrosomia with increasing antenatal weight gain.