Evidence map›Paper›PMID 26302044›Full record

ArticlePloS one2015

Estimating the Impact of Earlier ART Initiation and Increased Testing Coverage on HIV Transmission among Men Who Have Sex with Men in Mexico using a Mathematical Model.

Yanink Caro-Vega, Carlos del Rio, Viviane Dias Lima, Malaquias Lopez-Cervantes, Brenda Crabtree-Ramirez, Sergio Bautista-Arredondo, M Arantxa Colchero, Juan Sierra-Madero

Abstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

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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

8 authors.

Yanink Caro-VegaFaculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico; Department of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, Mexico.
Carlos del RioHubert Department of Global Health, Rollins School of Public Health & Emory Center for AIDS Research, Atlanta, Georgia, United States of America.
Viviane Dias LimaDivision of AIDS, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Malaquias Lopez-CervantesFaculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Brenda Crabtree-RamirezDepartment of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, Mexico.
Sergio Bautista-ArredondoDivision of Health Economics and Health Systems Innovations, National Institute of Public Health, Cuernavaca, Morelos, Mexico.
M Arantxa ColcheroDivision of Health Economics and Health Systems Innovations, National Institute of Public Health, Cuernavaca, Morelos, Mexico.
Juan Sierra-MaderoDepartment of Infectious Diseases, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, Mexico.

Funding

Virology and Molecular Biomarkers CoreP30AI050409 · NIAID · EMORY UNIVERSITY · PI Hannah LF Cooper · 2002 to 2026
$74.0M
CCASAnet: Caribbean, Central and South America NetworkU01AI069923 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Pedro Enrique Cahn, Jessica L Castilho · 2006 to 2026
$41.6M
EMORY AIDS INTERNATIONAL TRAINING AND RESEARCH PROGRAMD43TW001042 · FIC · EMORY UNIVERSITY · PI DEL RIO, CARLOS · 1998 to 2013
$6.8M
Modeling different strategies to reduce the public health impact of the HCV/HIV eR03DA033851 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI LIMA, VIVIANE DIAS · 2012 to 2013
$55k
CIHR MOP-125948FIC NIH HHS D43 TW001042FIC NIH HHS D43 TW01042NIAID NIH HHS P30 AI050409NIAID NIH HHS U01 AI069923NIDA NIH HHS R03 DA033851NIDA NIH HHS R03DA033851
6 · The paper itself

Abstract

objectiveTo estimate the impact of late ART initiation on HIV transmission among men who have sex with men (MSM) in Mexico.

methodsAn HIV transmission model was built to estimate the number of infections transmitted by HIV-infected men who have sex with men (MSM-HIV+) MSM-HIV+ in the short and long term. Sexual risk behavior data were estimated from a nationwide study of MSM. CD4+ counts at ART initiation from a representative national cohort were used to estimate time since infection. Number of MSM-HIV+ on treatment and suppressed were estimated from surveillance and government reports. Status quo scenario (SQ), and scenarios of early ART initiation and increased HIV testing were modeled.

resultsWe estimated 14239 new HIV infections per year from MSM-HIV+ in Mexico. In SQ, MSM take an average 7.4 years since infection to initiate treatment with a median CD4+ count of 148 cells/mm3(25th-75th percentiles 52-266). In SQ, 68% of MSM-HIV+ are not aware of their HIV status and transmit 78% of new infections. Increasing the CD4+ count at ART initiation to 350 cells/mm3 shortened the time since infection to 2.8 years. Increasing HIV testing to cover 80% of undiagnosed MSM resulted in a reduction of 70% in new infections in 20 years. Initiating ART at 500 cells/mm3 and increasing HIV testing the reduction would be of 75% in 20 years.

conclusionA substantial number of new HIV infections in Mexico are transmitted by undiagnosed and untreated MSM-HIV+. An aggressive increase in HIV testing coverage and initiating ART at a CD4 count of 500 cells/mm3 in this population would significantly benefit individuals and decrease the number of new HIV infections in Mexico.

Indexed as

Antiretroviral Therapy, Highly ActiveHomosexuality, MaleAdultFemaleHIVHIV InfectionsHumansMaleMass ScreeningMexicoModels, TheoreticalRisk-TakingSexual Behavior

Identifiers

PMID26302044
PMCPMC4547810

What OpenQuestion holds

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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.