Evidence map›Paper›PMID 32004256›Full record

ArticleSexually transmitted diseases2020

Chlamydia trachomatis Is Associated With Medically Indicated Preterm Birth and Preeclampsia in Young Pregnant Women.

Ashley V Hill, Maria Perez-Patron, Carmen D Tekwe, Ramkumar Menon, Deanna Hairrell, Brandie D Taylor

Open access · greenAbstract read
In one paragraph

Article in Sexually transmitted diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 25% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Current Evidence of Maternal Infection With Chlamydia trachomatis and Preeclampsia Risk.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Review
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  6. The Impact ofOpen forum infectious diseases · 2023
    Article
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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 at 3 institutions in 1 country.

Ashley V Hill
Maria Perez-PatronDepartment of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, College Station, TX.
Carmen D TekweDepartment of Epidemiology and Biostatistics, Indiana University School of Public Health, Bloomington, IN.
Ramkumar MenonDivision of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX.
Deanna HairrellDepartment of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, College Station, TX.
Brandie D Taylor
Texas A&M University · USIndiana University Bloomington · USThe University of Texas Medical Branch at Galveston · US

Funding

Adolescent Research in Community Postdoctoral Training ProgramT32HD087162 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MILLER, ELIZABETH · 2016 to 2020
$1.2M
NICHD NIH HHS T32 HD087162
6 · The paper itself

Abstract

backgroundStudies on Chlamydia trachomatis-associated pregnancy outcomes are largely conflicting, ignoring the heterogeneous natures of pregnancy complications and potential effect modification by maternal age. This study determined if prenatal C. trachomatis infection is associated with preterm birth (PTB) and preeclampsia subtypes.

methodsA retrospective cohort study was conducted using 22,772 singleton pregnancies with a prenatal C. trachomatis diagnostic test. Spontaneous and medically indicated PTBs, and term and preterm preeclampsia were outcomes. Modified Poisson regression calculated relative risk (RR) and 95% confidence intervals (CI) with propensity score adjustments stratified by maternal ages <25 and ≥25 years.

resultsOverall, C. trachomatis was significantly associated with term preeclampsia (adjusted RR [RRadj], 1.88; 95% CI, 1.38-2.57). Among young women (age <25 years), C. trachomatis was significantly associated with medically indicated PTB (RRadj, 2.29; 95% CI, 1.38-3.78) and term preeclampsia (RRadj, 1.57; 95% CI, 1.05-2.36) in propensity-adjusted models. No significant associations in older women were detected.

conclusionC. trachomatis was associated with medically indicated PTB and term preeclampsia in young women. Associations between chlamydia and perinatal outcomes may depend on the subtype of PTB and preeclampsia, which should be investigated through mechanistic studies.

Indexed as

AdultAgedChlamydia InfectionsChlamydia trachomatisCohort StudiesFemaleHumansInfant, NewbornInfant, PrematurePre-EclampsiaPregnancyPregnancy Complications, InfectiousPregnant PeoplePremature BirthPrevalenceRetrospective Studies

Identifiers

PMID32004256
PMCPMC8096198
OpenAlexW3004569026

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.