Evidence map›Paper›PMID 31577818›Full record

ArticlePloS one2019

Highly diverse anaerobe-predominant vaginal microbiota among HIV-infected pregnant women in Zambia.

Joan T Price, Bellington Vwalika, Marcia Hobbs, Julie A E Nelson, Elizabeth M Stringer, Fei Zou, Katelyn J Rittenhouse, Andrea Azcarate-Peril, Margaret P Kasaro, Jeffrey S A Stringer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.

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  12. Vaginal Microbiome and the Risk of Preterm Birth in Women Living With HIV: A Scoping Review.American journal of reproductive immunology (New York, N.Y. : 1989) · 2024
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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 at 3 institutions in 2 countries.

Joan T PriceDivision of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.ORCID 0000-0003-4178-0405
Bellington VwalikaDepartment of Obstetrics and Gynaecology, University of Zambia School of Medicine, Lusaka, Zambia.
Marcia HobbsDivision of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.
Julie A E NelsonDepartment of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.
Elizabeth M StringerDivision of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.
Fei ZouDepartment of Biostatistics, University of North Carolina Gillings School of Global Public Health, Chapel Hill, North Carolina, United States of America.
Katelyn J RittenhouseDivision of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.
Andrea Azcarate-PerilMicrobiome Core Facility, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Margaret P KasaroUNC Global Projects Zambia, Lusaka, Zambia.
Jeffrey S A StringerDivision of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.ORCID 0000-0002-9590-7216
University of North Carolina at Chapel Hill · USNational HIV/AIDS/STI/TB Council · ZMUniversity of Zambia · ZM

Funding

Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
UJMT – ORWH – Gazzetta, Issa-BoubeD43TW009340 · FIC · UNIV OF NORTH CAROLINA CHAPEL HILL · PI William Checkley, Benjamin H. Chi · 2017 to 2026
$14.8M
UNC Global Women’s Health FellowshipT32HD075731 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CHI, BENJAMIN H. · 2013 to 2024
$2.4M
A Career Development Award in HIV-Associated Preterm Birth and its PreventionK01TW010857 · FIC · UNIV OF NORTH CAROLINA CHAPEL HILL · PI PRICE, JOAN · 2017 to 2021
$682k
FIC NIH HHS D43 TW009340FIC NIH HHS K01 TW010857NIAID NIH HHS P30 AI050410NICHD NIH HHS T32 HD075731
6 · The paper itself

Abstract

Vaginal dysbiosis has been shown to increase the risk of some adverse birth outcomes. HIV infection may be associated with shifts in the vaginal microbiome. We characterized microbial communities in vaginal swabs collected between 16-20 gestational weeks in the Zambian Preterm Birth Prevention Study to investigate whether HIV and its treatment alter the microbiome in pregnancy. We quantified relative abundance and diversity of bacterial taxa by whole-genome shotgun sequencing and identified community state types (CST) by hierarchical clustering. Associations between exposures-HIV serostatus (HIV+ vs HIV-) and preconceptional ART (ART+ vs ART-)-and microbiome characteristics were tested with rank-sum, and by linear and logistic regression, accounting for sampling by inverse-probability weighting. Of 261 vaginal swabs, 256 (98%) had evaluable sequences; 98 (38%) were from HIV+ participants, 55 (56%) of whom had preconceptional ART exposure. Major CSTs were dominated by: L. crispatus (CST 1; 17%), L.] iners (CST 3; 32%), Gardnerella vaginalis (CST 4-I; 37%), G. vaginalis & Atopobium vaginae (CST 4-II; 5%), and other mixed anaerobes (CST 4-III; 9%). G. vaginalis was present in 95%; mean relative abundance was higher in HIV+ (0.46±0.29) compared to HIV- participants (0.35±0.33; rank-sum p = .01). Shannon diversity was higher in HIV+/ART+ (coeff 0.17; 95%CI (0.01,0.33), p = .04) and HIV+/ART- (coeff 0.37; 95%CI (0.19,0.55), p < .001) participants compared to HIV-. Anaerobe-dominant CSTs were more prevalent in HIV+/ART+ (63%, AOR 3.11; 95%CI: 1.48,6.55, p = .003) and HIV+/ART- (85%, AOR 7.59; 95%CI (2.80,20.6), p < .001) compared to HIV- (45%). Restricting the comparison to 111 women in either CST 3 (L. iners dominance) or CST 1 (L. crispatus dominance), CST 3 frequency was similar in HIV- (63%) and HIV+/ART- participants (67%, AOR 1.31; 95%CI: (0.25,6.90), p = .7), but higher in HIV+/ART+ (89%, AOR 6.44; 95%CI: (1.12,37.0), p = .04). Pregnant women in Zambia, particularly those with HIV, had diverse anaerobe-dominant vaginal microbiota.

Indexed as

BiodiversityMicrobiotaAdultAntiretroviral Therapy, Highly ActiveBacteria, AnaerobicCohort StudiesFemaleHIV InfectionsHumansPhylogenyPregnancyVaginaYoung AdultZambia

Identifiers

PMID31577818
PMCPMC6774526
OpenAlexW2978819644

What OpenQuestion holds

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LicenceCC BY
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.