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Gynecol Obstet Invest. 2007;63(1):15-21. Epub 2006 Jul 20.

First trimester markers for pre-eclampsia: placental vs. non-placental protein serum levels.

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1
Division of Epidemiology and Biostatistics, Department of Social and Preventive Medicine, University of Berne, Berne, Switzerland.

Abstract

BACKGROUND/AIM:

Parallel investigation, in a matched case-control study, of the association of different first-trimester markers with the risk of subsequent pre-eclampsia (PE).

METHOD:

The levels of different first trimester serum markers and fetal nuchal translucency thickness were compared between 52 cases of PE and 104 control women by non-parametric two-group comparisons and by calculating matched odds ratios.

RESULTS:

In univariable analysis increased concentrations of inhibin A and activin A were associated with subsequent PE (p < 0.02). Multivariable conditional logistic regression models revealed an association between increased risk of PE and increased inhibin A and translucency thickness and respectively reduced pregnancy-associated plasma protein A (PAPP-A) and placental lactogen . However, these associations varied with the gestational age at sample collection. For blood samples taken in pregnancy weeks 12 and 13 only, increased levels of activin A, inhibin A and nuchal translucency thickness, and lower levels of placenta growth factor and PAPP-A were associated with an increased risk of PE.

CONCLUSIONS:

Members of the inhibin family and to some extent PAPP-A and placental growth factor are superior to other serum markers, and the predictive value of these depends on the gestational age at blood sampling. The availability of a single, early pregnancy 'miracle' serum marker for PE risk assessment seems unlikely in the near future.

PMID:
16864982
DOI:
10.1159/000094672
[Indexed for MEDLINE]

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