Evidence map›Paper›PMID 27500670›Full record

SynthesisAIDS (London, England)2016

An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women.

Chelsea B Polis, Kathryn M Curtis, Philip C Hannaford, Sharon J Phillips, Tsungai Chipato, James N Kiarie, Daniel J Westreich, Petrus S Steyn

Registry-linked trialOpen access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in AIDS (London, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02905890 (Hormonal Contraception and Bacterial Vaginosis), which is not on this map. Cited by 126 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 6 pooled it
23.6field-weighted citation impact, top 1% 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.

NCT02905890 phase4completednot on this mapstarted 2017, after this paper: background citation

Hormonal Contraception and Bacterial Vaginosis (HCBV): The Effect of Norethisterone Enanthate on Recurrent Bacterial Vaginosis Among Women at High Risk for HIV Infection in Kampala, Uganda

TypeinterventionalSponsorLondon School of Hygiene and Tropical MedicineRan2017 to 2019Enrolled250ConditionsBacterial Vaginosis, HIVArmsNorethisterone enantate, Condoms
3 · Its place in the literature

Who cites it

126 citing papers in PubMed, 6 syntheses or guidelines pooled it, 193 citations in OpenAlex.

  1. Sexually Transmitted Infections Treatment Guidelines, 2021.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2021
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  15. Genital inflammatory status and the innate immune response to contraceptive initiation.American journal of reproductive immunology (New York, N.Y. : 1989) · 2022
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66 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 6 institutions in 4 countries.

Chelsea B PolisaGuttmacher Institute, New York, New York bDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland cDivision of Reproductive Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, USA dCentre of Primary Academic Care, University of Aberdeen, United Kingdom eDepartment of Family Medicine, Boston University School of Medicine/Boston Medical Center, Boston, Massachusetts, USA fDepartment of Obstetrics and Gynecology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe gDepartment of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland hDepartment of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA.
Kathryn M Curtis
Philip C Hannaford
Sharon J Phillips
Tsungai Chipato
James N Kiarie
Daniel J Westreich
Petrus S Steyn
Centers for Disease Control and Prevention · USBoston University · USGuttmacher Institute · USUniversity of Aberdeen · GBUniversity of Zimbabwe · ZWWorld Health Organization · CH

Funding

From patients to policy: innovative epidemiology for implementation scienceDP2HD084070 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI WESTREICH, DANIEL J · 2014 to 2014
$2.3M
Research Infrastructure for Demographic and Behavioral Population Science Dissemination CoreR24HD074034 · NICHD · GUTTMACHER INSTITUTE · PI KOST, KATHRYN L · 2013 to 2017
$462k
NICHD NIH HHS DP2 HD084070NICHD NIH HHS R24 HD074034World Health Organization 001
6 · The paper itself

Abstract

OBJECTIVE AND

designSome studies suggest that specific hormonal contraceptive methods [particularly depot medroxyprogesterone acetate (DMPA)] may increase women's HIV acquisition risk. We updated a systematic review to incorporate recent epidemiological data.

methodsWe searched for articles published between 15 January 2014 and 15 January 2016 and hand-searched reference lists. We identified longitudinal studies comparing users of a specific hormonal contraceptive method against either nonusers of hormonal contraception or users of another specific hormonal contraceptive method. We added newly identified studies to those in the previous review, assessed study quality, created forest plots to display results, and conducted a meta-analysis for data on DMPA versus non-use of hormonal contraception.

resultsWe identified 10 new reports of which five were considered 'unlikely to inform the primary question'. We focus on the other five reports, along with nine from the previous review, which were considered 'informative but with important limitations'. The preponderance of data for oral contraceptive pills, injectable norethisterone enanthate, and levonorgestrel implants do not suggest an association with HIV acquisition, though data for implants are limited. The new, higher quality studies on DMPA (or nondisaggregated injectables), which had mixed results in terms of statistical significance, had hazard ratios between 1.2 and 1.7, consistent with our meta-analytic estimate for all higher quality studies of hazard ratio 1.4.

conclusionAlthough confounding in these observational data cannot be excluded, new information increases concerns about DMPA and HIV acquisition risk in women. If the association is causal, the magnitude of effect is likely hazard ratio 1.5 or less. Data for other hormonal contraceptive methods, including norethisterone enanthate, are largely reassuring.

Indexed as

ContraceptionContraceptive Agents, FemaleFemaleHIV InfectionsHumansRisk AssessmentContraceptive Agents, Female

Identifiers

PMID27500670
PMCPMC5106090
OpenAlexW2544080039

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.