Marker

Median

Standard Deviation

Alpha-Fetoprotein

−0.14 to −0.15

0.15 to 0.21

hCG TOTAL

0.30 to −0.33

0.21 to 0.27

Beta hCG Trimester 2

0.33 to 0.38

0.29 to 0.34

Beta hCG Trimester 1

0.28 to 0.32

0.25 to 0.29

uE3

−0.13 to −0.18

0.12 to 0.18

PAPP-A

−0.26 to −0.38

0.27 to 0.32

INH-A

0.26 to 0.34

0.25 to 0.28

NT

0.30 to 0.31

0.44 to 0.47