Title: Distribution of growth assessments across gestation in the lower-risk nested cohort used to derive the sex-specific growth curves.
Caption: Panel A: Scatter plot of EFWs and birth weights used to derived the new sex-specific standard. Colors denote the study visit at which the weight was measured. Panel B: Fitted nuMoM2b male and female fetal growth curves alongside the Hadlock sex-neutral growth curve. For ease of interpretation, the x axis (gestational age) in panels A and B are alginged, and the y axis (weight) scales are equivalent. Panel C: Sex-specific formulas for expected fetal weight at a given gestational age, where GA is in weeks, decimal format. EFW, estimated fetal weight; GA, gestational age.