Evidence map›Paper›PMID 29334545›Full record

ArticleAIDS (London, England)2018

Bacterial vaginosis modifies the association between hormonal contraception and HIV acquisition.

Lisa B Haddad, Kristin M Wall, William Kilembe, Bellington Vwalika, Naw H Khu, Ilene Brill, Elwyn Chomba, Amanda Tichacek, Susan Allen

Open access · hybridAbstract read
In one paragraph

Article in AIDS (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  10. Six Bacterial Vaginosis-Associated Species Can Form anFrontiers in cellular and infection microbiology · 2022
    Article
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  13. Frontiers in cellular and infection microbiology · 2021
    Article
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  15. Observational
  16. Evaluation of the Inhibitory Effects ofFrontiers in medicine · 2020
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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

9 authors at 3 institutions in 3 countries.

Lisa B HaddadDepartment of Gynecology and Obstetrics, Emory University School of Medicine.
Kristin M WallRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
William KilembeRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Bellington VwalikaRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Naw H KhuRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Ilene BrillDepartment of Epidemiology, Ryals School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Elwyn ChombaRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Amanda TichacekRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Susan AllenRwanda Zambia HIV Research Group, Department of Pathology & Laboratory Medicine, School of Medicine and Hubert Department of Global Health, Rollins School of Public Health, Emory University.
Rwanda Zambia HIV Research Group · RWEmory University · USUniversity of Alabama at Birmingham · US

Funding

Virology and Molecular Biomarkers CoreP30AI050409 · NIAID · EMORY UNIVERSITY · PI Carlos del Rio · 2002 to 2026
$74.0M
CTL and HIV Polymorphisms in Heterosexual TransmissionR01AI064060 · NIAID · EMORY UNIVERSITY · PI GOEPFERT, PAUL A., HUNTER, ERIC · 2005 to 2019
$21.7M
Virologic Correlates of Heterosexual TransmissionR01AI051231 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ALLEN, TODD M, HUNTER, ERIC · 2002 to 2022
$9.9M
Virologic Correlates of Heterosexual TransmissionR37AI051231 · NIAID · EMORY UNIVERSITY · PI HUNTER, ERIC · 2008 to 2017
$9.6M
EMORY AIDS INTERNATIONAL TRAINING AND RESEARCH PROGRAMD43TW001042 · FIC · EMORY UNIVERSITY · PI DEL RIO, CARLOS · 1998 to 2013
$6.8M
Couples HIV Counseling &Testing in two African capitalsR01MH066767 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ALLEN, SUSAN A · 2002 to 2006
$6.1M
EXPANSION OF ZEHRP'S COUPLES VOLUNTARY COUNSELING AND TESTING SERVICES U2GPS000758 · PS · ZAMBIA EMORY HIV RESEARCH PROJECT · PI ALLEN, SUSAN A · 2007 to 2012
$4.7M
Family Planning Promotion in HIV Infected ZambiansR01HD040125 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ALLEN, SUSAN A. · 2001 to 2005
$4.2M
PROJECT SAN FRANCISCO CENTER OF EXCELLENCE FOR THE EXPANSION OF CHCT IN RWANDA ANU2GPS001839 · PS · EMORY UNIVERSITY · PI ALLEN, SUSAN A · 2009 to 2014
$2.6M
RAWANDA ZAMBIA HIV RESEARCH GROUP CENTER OF EXCELENCE FOR THE EXPANSION OF CHCT SU2GPS001904 · PS · EMORY UNIVERSITY · PI ALLEN, SUSAN · 2009 to 2014
$2.3M
IUD, implant, and condoms: sexual and perinatal HIV prevention in Rwandan couplesR01HD072659 · NICHD · EMORY UNIVERSITY · PI ALLEN, SUSAN A · 2012 to 2016
$1.8M
Impact of progestin contraception on risk of HIV acquisition and transmissionK23HD078153 · NICHD · EMORY UNIVERSITY · PI HADDAD, LISA BLAKE · 2014 to 2018
$704k
CGH CDC HHS U2G GH001443FIC NIH HHS D43 TW001042NCHHSTP CDC HHS U2G PS000758NCHHSTP CDC HHS U2G PS001839NCHHSTP CDC HHS U2G PS001904NIAID NIH HHS P30 AI050409NIAID NIH HHS R01 AI023980NIAID NIH HHS R01 AI051231NIAID NIH HHS R01 AI064060NIAID NIH HHS R37 AI051231NICHD NIH HHS K23 HD078153NICHD NIH HHS R01 HD040125NICHD NIH HHS R01 HD072659NIMH NIH HHS R01 MH066767
6 · The paper itself

Abstract

objectiveTo examine bacterial vaginosis as an effect modifier for the association between hormonal contraception and incident HIV infection.

designSerodiscordant couples enrolled in an open longitudinal cohort in Lusaka, Zambia from 1994 to 2012. This analysis was restricted to couples with an HIV-positive man enrolled between1994 and 2002 when a quarterly genital tract examination and HIV testing was performed.

methodsMultivariate Cox models evaluated the association between contraceptive method and HIV-acquisition, stratified by time-varying bacterial vaginosis status.

resultsAmong 564 couples contributing 1137.2 couple-years of observation, bacterial vaginosis was detected at 15.5% of study visits. Twenty-two of 106 seroconversions occurred during intervals after bacterial vaginosis was detected [12 on no method/nonhormonal method (nonhormonal contraception), two on injectables, eight on oral contraceptive pills (OCPs)]. Unadjusted seroincidence rates per 100 couple-years for nonhormonal contraception, injectable, and OCP users, respectively, during intervals with bacterial vaginosis were 8.3, 20.8, and 31.0 and during intervals without bacterial vaginosis were 8.2, 9.7, and 12.3. In the bacterial vaginosis-positive model, there was a significant increase in incident HIV among those using injectables (adjusted hazard ratio, aHR 6.55, 95% CI 1.14-37.77) and OCPs (aHR 5.20, 95% CI 1.68-16.06) compared with nonhormonal contraception. Hormonal contraception did not increase the hazard of HIV acquisition in bacterial vaginosis-negative models. These findings persisted in sensitivity analyses whenever all covariates from the nonstratified model previously published were included, whenever other genital tract findings were excluded from the model and with the addition of condom-less sex and sperm on wet-prep.

conclusionFuture research should consider a potential interaction with bacterial vaginosis whenever evaluating the impact of hormonal contraception on HIV acquisition.

Indexed as

AdultContraceptionFemaleHIV InfectionsHumansIncidenceLongitudinal StudiesMaleRisk AssessmentVaginosis, BacterialYoung AdultZambia

Identifiers

PMID29334545
PMCPMC5832628
OpenAlexW2784210653

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LicenceCC BY-NC-ND
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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.