Evidence map›Paper›PMID 31056151›Full record

ArticlePregnancy hypertension2019

Low fetal fraction of cell-free DNA predicts placental dysfunction and hypertensive disease in pregnancy.

Kristin D Gerson, Samantha Truong, Miriam J Haviland, Barbara M O'Brien, Michele R Hacker, Melissa H Spiel

Abstract read
In one paragraph

Article in Pregnancy hypertension, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kristin D GersonDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA, United States; Maternal and Child Health Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Samantha TruongHarvard Medical School, Boston, MA, United States.
Miriam J HavilandDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Barbara M O'BrienDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Michele R HackerDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Melissa H SpielDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA, United States. Electronic address: mspiel@bidmc.harvard.edu.

Funding

The Harvard Clinical and Translational Science CenterUL1TR002541 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2018 to 2022
$93.0M
NCATS NIH HHS UL1 TR002541
6 · The paper itself

Abstract

objectiveTo examine the association of low fetal fraction of cell-free DNA (cfDNA) with placental compromise and adverse perinatal outcomes. MATERIALS AND

methodsThis was a retrospective cohort utilizing a sample of convenience including 639 women undergoing cfDNA screening at our institution from January 2013 to January 2017. Low fetal fraction was defined as less than the 25th percentile. Indicators of placental compromise were examined individually and as a composite outcome, including hypertensive disease of pregnancy, intrauterine growth restriction, abruption, and oligohydramnios. Neonatal outcomes, including preterm delivery, low Apgar scores, and small for gestational age, also were examined. We calculated risk ratios (RR) and 95% confidence intervals (CI).

resultsLow fetal fraction was associated with placental compromise (RR 1.6 [CI 1.1-2.2]), hypertensive disease of pregnancy (RR 1.6 [CI 1.003-2.6]), and preeclampsia with severe features (RR 3.3 [CI 1.2-8.9]). Low fetal faction was not associated with preterm delivery, low Apgar scores, or small for gestational age.

conclusionsLow fetal fraction of cfDNA among asymptomatic women may serve as a predictor of subsequent placental dysfunction and hypertensive disease.

Indexed as

AdultBiomarkersCell-Free Nucleic AcidsCohort StudiesFemaleFetusHumansHypertension, Pregnancy-InducedInfant, NewbornMassachusettsPlacentaPredictive Value of TestsPregnancyPregnancy OutcomePrenatal DiagnosisRetrospective StudiesBiomarkersCell-Free Nucleic AcidsCell-free DNAFetal fractionHypertensive disease in pregnancyPlacental dysfunction

Identifiers

PMID31056151
PMCPMC10066927

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.