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Table 1 Correlations between biochemical markers in first trimester screening

From: First trimester screening for trisomy 21 in gestational week 8-10 by ADAM12-S as a maternal serum marker

  Controls   trisomy 21 cases
  gestational week correlation correlation
ADAM12-S and PAPP-A 8 0.40  
  9 0.34  
  10 0.43  
  Overall 0.39 0.33
ADAM12-S and free β-hCG 8 0.30  
  9 0.10  
  10 0.28  
  Overall 0.21 -0.02
  1. Correlations between log MoM ADAM12-S and PAPP-A and log MoM ADAM12-S and free β-hCG in unaffected pregnancies (by gestational week) and in trisomy 21 pregnancies.
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