Am J Perinatol 2015; 32(07): 703-712
DOI: 10.1055/s-0034-1396697
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Early-Onset Severe Preeclampsia by First Trimester Pregnancy-Associated Plasma Protein A and Total Human Chorionic Gonadotropin

Laura L. Jelliffe-Pawlowski
1   Genetic Disease Screening Program, California Department of Public Health, Richmond, California
2   Division of Preventive Medicine and Public Health, Department of Epidemiology and Biostatistics, University of California San Francisco School of Medicine, San Francisco California
,
Rebecca J. Baer
1   Genetic Disease Screening Program, California Department of Public Health, Richmond, California
,
Robert J. Currier
1   Genetic Disease Screening Program, California Department of Public Health, Richmond, California
,
Deirdre J. Lyell
3   Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
,
Yair J. Blumenfeld
3   Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
,
Yasser Y. El-Sayed
3   Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
,
Gary M. Shaw
4   Department of Pediatrics, Stanford University School of Medicine, Stanford, California
,
Maurie L. Druzin
3   Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California
› Author Affiliations
Further Information

Publication History

23 July 2014

22 October 2014

Publication Date:
17 December 2014 (online)

Abstract

Objective This study aims to evaluate the relationship between early-onset severe preeclampsia and first trimester serum levels of pregnancy-associated plasma protein A (PAPP-A) and total human chorionic gonadotropin (hCG).

Study Design The association between early-onset severe preeclampsia and abnormal levels of first trimester PAPP-A and total hCG in maternal serum were measured in a sample of singleton pregnancies without chromosomal defects that had integrated prenatal serum screening in 2009 and 2010 (n = 129,488). Logistic binomial regression was used to estimate the relative risk (RR) of early-onset severe preeclampsia in pregnancies with abnormal levels of first trimester PAPP-A or total hCG as compared with controls.

Results Regardless of parity, women with low first trimester PAPP-A or high total hCG were at increased risk for early-onset severe preeclampsia. Women with low PAPP-A (multiple of the median [MoM] ≤ the 10th percentile in nulliparous or ≤ the 5th percentile in multiparous) or high total hCG (MoM ≥ the 90th percentile in nulliparous or ≥ the 95th percentile in multiparous) were at more than a threefold increased risk for early-onset severe preeclampsia (RR, 4.2; 95% confidence interval [CI], 3.0–5.9 and RR, 3.3; 95% CI, 2.1–5.2, respectively).

Conclusion Routinely collected first trimester measurements of PAPP-A and total hCG provide unique risk information for early-onset severe preeclampsia.