Evidence map›Paper›PMID 21829650›Full record

ArticlePloS one2011

Pregnancy and virologic response to antiretroviral therapy in South Africa.

Daniel Westreich, Stephen R Cole, Shashi Nagar, Mhairi Maskew, Charles van der Horst, Ian Sanne

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  9. Effect of Pregnancy on Response to Antiretroviral Therapy in HIV-Infected African Women.Journal of acquired immune deficiency syndromes (1999) · 2017
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  17. Prevalent pregnancy, biological sex, and virologic response to antiretroviral therapy.Journal of acquired immune deficiency syndromes (1999) · 2012
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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 2 institutions in 2 countries.

Daniel WestreichDepartment of Obstetrics and Gynecology, Duke Global Health Institute, Duke University, Durham, North Carolina, United States of America. daniel.westreich@duke.edu
Stephen R Cole
Shashi Nagar
Mhairi Maskew
Charles van der Horst
Ian Sanne
University of North Carolina at Chapel Hill · USUniversity of the Witwatersrand · ZA

Funding

Virology, Immunology, and Microbiology CoreP30AI050410 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVID M. MARGOLIS · 2001 to 2026
$76.9M
Pregnancy and Response to Antiretroviral Therapy in South AfricaR00HD063961 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI WESTREICH, DANIEL J · 2010 to 2012
$687k
Pregnancy and response to antiretroviral therapy in South AfricaK99HD063961 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI WESTREICH, DANIEL J · 2010 to 2010
$73k
NIAID NIH HHS P30 AI050410NIAID NIH HHS P30-AI-50410NICHD NIH HHS K99 HD063961NICHD NIH HHS K99-HD-06-3961NICHD NIH HHS R00 HD063961NICHD NIH HHS R00-HD-06-3961-02
6 · The paper itself

Abstract

backgroundAlthough women of reproductive age are the largest group of HIV-infected individuals in sub-Saharan Africa, little is known about the impact of pregnancy on response to highly active antiretroviral therapy (HAART) in that setting. We examined the effect of incident pregnancy after HAART initiation on virologic response to HAART. METHODS AND

findingsWe evaluated a prospective clinical cohort of adult women who initiated HAART in Johannesburg, South Africa between 1 April 2004 and 30 September 2009, and followed up until an event, death, transfer, drop-out, or administrative end of follow-up on 31 March 2010. Women over age 45 and women who were pregnant at HAART initiation were excluded from the study; final sample size for analysis was 5,494 women. Main exposure was incident pregnancy, experienced by 541 women; main outcome was virologic failure, defined as a failure to suppress virus to ≤ 400 copies/ml by six months or virologic rebound >400 copies/ml thereafter. We calculated adjusted hazard ratios using marginal structural Cox proportional hazards models and weighted lifetable analysis to calculate adjusted five-year risk differences. The weighted hazard ratio for the effect of pregnancy on time to virologic failure was 1.34 (95% confidence limit [CL] 1.02, 1.78). Sensitivity analyses generally confirmed these main results.

conclusionsIncident pregnancy after HAART initiation was associated with modest increases in both relative and absolute risks of virologic failure, although uncontrolled confounding cannot be ruled out. Nonetheless, these results reinforce that family planning is an essential part of care for HIV-positive women in sub-Saharan Africa. More work is needed to confirm these findings and to explore specific etiologic pathways by which such effects may operate.

Indexed as

HIV InfectionsAdultAnti-HIV AgentsAntiretroviral Therapy, Highly ActiveFemaleHumansMiddle AgedPregnancyPregnancy Complications, InfectiousAnti-HIV Agents

Identifiers

PMID21829650
PMCPMC3149058
OpenAlexW1993963251

What OpenQuestion holds

Textmetadata
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.