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Am J Obstet Gynecol. 1998 Oct;179(4):946-51.

Predictors of pre-eclampsia in women at high risk. National Institute of Child Health and Human Development Network of Maternal-Fetal Medicine Units.

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  • 1National Institute of Child Health and Human Development Network of Maternal-Fetal Medicine Units, Bethesda, Maryland, USA.

Abstract

OBJECTIVE:

We assessed several variables as predictors for pre-eclampsia risk in a group of women at high risk.

STUDY DESIGN:

We studied 2503 women with either diabetes mellitus, chronic hypertension, multifetal gestation, or pre-eclampsia in a previous pregnancy who participated in a multicenter study comparing aspirin and placebo in preventing pre-eclampsia. We evaluated multiple variables for predicting pre-eclampsia risk with use of univariate and multivariable analysis.

RESULTS:

Parity and mean arterial pressure at randomization were most predictive of pre-eclampsia risk. The risk was 8% with a mean arterial pressure at enrollment of <75 mm Hg versus 27% with a mean arterial pressure >85 mm Hg (relative risk and 95% confidence interval 3.3 [2.4 to 4.4]). The risk of pre-eclampsia was 26% in nulliparous patients versus 17% in parous subjects (relative risk and 95% confidence interval 1.5 [1.3-1.8]).

CONCLUSIONS:

The finding that second-trimester mean arterial pressure affects pre-eclampsia risk suggests that the pathophysiologic process of preeclampsia is initiated before that time.

PMID:
9790376
[PubMed - indexed for MEDLINE]
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