Evidence map›Paper›PMID 34426993›Full record

ArticlePrenatal diagnosis2021

Low fetal fraction in cell-free DNA testing is associated with adverse pregnancy outcome: Analysis of a subcohort of the TRIDENT-2 study.

Ellis C Becking, Soetinah A M Wirjosoekarto, Peter G Scheffer, Julia V M Huiskes, Marinka J Remmelink, Erik A Sistermans, Caroline J Bax, Janneke M Weiss, Lidewij Henneman, Mireille N Bekker

Abstract read
In one paragraph

Article in Prenatal diagnosis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 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

16 citing papers in PubMed, 1 synthesis or guideline 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

10 authors.

Ellis C BeckingDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.ORCID https://orcid.org/0000-0003-0418-7880
Soetinah A M WirjosoekartoDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
Peter G SchefferDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.ORCID https://orcid.org/0000-0001-9253-5341
Julia V M HuiskesDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
Marinka J RemmelinkDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
Erik A SistermansDepartment of Clinical Genetics, Amsterdam Reproduction & Development research institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0001-7187-4563
Caroline J BaxDepartment of Obstetrics, Amsterdam UMC, University of Amsterdam, The Netherlands.
Janneke M WeissDepartment of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.
Lidewij HennemanDepartment of Clinical Genetics, Amsterdam Reproduction & Development research institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0003-3531-0597
Mireille N BekkerDepartment of Obstetrics, Division Woman and Baby, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.ORCID https://orcid.org/0000-0002-7372-4291

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess the association between low fetal fraction (FF) in prenatal cell-free DNA (cfDNA) testing and adverse pregnancy outcomes.

methodsWe conducted a retrospective cohort study of participants of the TRIDENT-2 study (Dutch nationwide government-supported study offering cfDNA screening for fetal aneuploidies) who received a failed test result due to low FF (<4%) between April 2017 until February 2018. Outcome measures included pregnancy-induced hypertension (PIH), pre-eclampsia (PE), small for gestational age neonates (SGA), spontaneous preterm birth (sPTB), gestational diabetes mellitus (GDM), chromosomal aberrations, and congenital structural anomalies.

resultsTest failure due to low FF occurred in 295 women (1.12% of tests performed). Information regarding pregnancy outcomes was available for 96.3% of these women. The incidence of PIH, PE, SGA, sPTB, and GDM was 11.2%, 4.1%, 7.3%, 5.1%, and 14.8%, respectively. The prevalence of chromosomal aberrations and congenital structural anomalies was 1.4% and 4.1%, respectively. Incidences of PIH, PE ≥ 34 weeks of gestation, GDM, and prevalence of aneuploidy and congenital structural anomalies were higher in women with low FF compared to the general Dutch obstetric population.

conclusionLow FF is associated with adverse pregnancy outcomes. The value of FF in the prediction of these outcomes needs to be further established.

Indexed as

AdultCell-Free Nucleic AcidsCohort StudiesFemaleHumansPregnancyPregnancy OutcomePrenatal DiagnosisRetrospective StudiesRisk FactorsCell-Free Nucleic Acids

Identifiers

PMID34426993
PMCPMC9293122

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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.