This application allows estimation of risks for fetal growth restriction (birth weight <5th percentile for gestational age) from a combination of maternal characteristics, previous obstetric history and findings at 11-13 weeks .

MoM values for mean arterial pressure and uterine artery PI can be calculated by the application provided in this section.

MoM values for PAPP-A and PLGF depend on maternal characteristics but also on the equipment and reagents used at a specific laboratory; you will therefore need to obtain the MoM values from your laboratory.