Figure legends
Figure 1. Venn diagrams describe newborns’ classification according to the centiles of each standard (at or above the 10th percentile vs. SGA and FGR) using both standards simultaneously.
Figure 2. Risk ratios of low APGAR scores and ponderal indexes in SGA and FGR neonates according to the WHO and IG-21st standards. A. Neonates classified as SGA and FGR by both standards exhibited the most significant RR for a low APGAR score. However, neonates classified as SGA only by WHO alone do not have a significantly higher risk of a low APGAR score. B. In terms of anthropometric measures, neonates classified as SGA and FGR by both standards exhibited the most significant RR for a low Ponderal Index. RRs were also increased in neonates identified as SGA by WHO fetal growth standard alone (SGA-WHO only), characterized by anthropometric measures resembling true FGR as reflected by a thrifty phenotype.