Evidence map›Paper›PMID 33872108›Full record

ArticlePediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society

Formulating a Meaningful and Comprehensive Placental Phenotypic Classification.

Alexa A Freedman, Lauren S Keenan-Devlin, Ann Borders, Gregory E Miller, Linda M Ernst

Open access · greenAbstract read
In one paragraph

Article in Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
5.3field-weighted citation impact, top 4% of its field
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

33 citing papers in PubMed, 57 citations in OpenAlex.

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  5. Clinical and Molecular Differences of Hypertensive Disorders During Pregnancy.Arteriosclerosis, thrombosis, and vascular biology · 2026
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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

5 authors at 2 institutions in 1 country.

Alexa A FreedmanInstitute for Policy Research, Northwestern University, Evanston, Illinois.ORCID https://orcid.org/0000-0001-9745-7768
Lauren S Keenan-DevlinDepartment of Obstetrics and Gynecology, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois.
Ann BordersDepartment of Obstetrics and Gynecology, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois.
Gregory E MillerInstitute for Policy Research, Northwestern University, Evanston, Illinois.
Linda M ErnstDepartment of Pathology and Laboratory Medicine, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Illinois.ORCID https://orcid.org/0000-0003-0104-5107
Northwestern University · USNorthShore University HealthSystem · US

Funding

Northwestern University Clinical and Translational Science Institute (NUCATS)UL1TR001422 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI D'AQUILA, RICHARD · 2015 to 2023
$56.8M
Understanding socioeconomic disparities in perinatal risk: The role of epigenetic and transcriptional regulation in the placentaR01MD011749 · NIMHD · NORTHWESTERN UNIVERSITY · PI BORDERS, ANN E.B., MILLER, GREGORY EVAN · 2017 to 2021
$3.9M
Maternal psychological stress, adverse birth outcomes, and the role of inflammatory mediators in the placentaF32HD100076 · NICHD · NORTHWESTERN UNIVERSITY · PI FREEDMAN, ALEXA · 2019 to 2021
$192k
NCATS NIH HHS UL1 TR001422NICHD NIH HHS F32 HD100076NIMHD NIH HHS R01 MD011749
6 · The paper itself

Abstract

introductionWhile many placental lesions have been identified and defined, the significance of multiple overlapping lesions has not been addressed. The purpose of our analysis was to evaluate overlapping patterns of placental pathology and determine meaningful phenotypes associated with adverse birth outcomes.

methodsPlacental pathology reports were obtained from a single hospital between 2009 and 2018. Placental lesions were grouped into four major categories: acute inflammation (AI), chronic inflammation (CI), maternal vascular malperfusion (MVM), and fetal vascular malperfusion (FVM). Within each category, lesions were classified as not present, low grade or high grade. Combinations of pathologies were evaluated in relation to preterm birth (<37 weeks) and small for gestational age (SGA) infant (birthweight <10th percentile).

resultsDuring the study period, 19,027 placentas were reviewed by pathologists. Results from interaction models indicate that MVM and MVM in combination with CI and/or FVM are associated with the greatest odds of SGA infant and PTB. When incorporating grade, we identified 21 phenotype groups, each with characteristic associations with the SGA infant and patterns of PTB. DISCUSSION: We have developed a comprehensive and meaningful placental phenotype that incorporates severity and multiplicity of placental lesions. We have also developed a web application to facilitate phenotype determination (https://placentaexpression.shinyapps.io/phenotype).

Indexed as

PhenotypeAcute DiseaseAdultChronic DiseaseFemaleFetal Growth RetardationHumansInfant, NewbornInfant, Small for Gestational AgeLogistic ModelsMalePlacentaPlacenta DiseasesPregnancyPregnancy OutcomePremature Birthbirth weightinfantinflammationpathologistplacentapremature birthsmall for gestational age birth

Identifiers

PMID33872108
PMCPMC8277726
OpenAlexW3154299908

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.