Table 2: Median Multiples of the Median (MoM) for free β-hCG, PAPP-A, CRL and NT in pregnancies with SGA infants and normal group.

Fetal weight (percentile) Median SD P value
free β-hCG (MoM) > 10th 1.26 0.86 < 0.001
< 10th 1.13 0.82
PAPP-A (MoM) > 10th 1.12 0.81 0. 001
< 10th 0.92 0.72
CRL (percentile) > 10th 58.74 21.45 < 0.001
< 10th 54.12 21.76
NT (percentile) > 10th 92.71 17.63 0.682
> 10th 92.51 17.61