Evidence map›Paper›PMID 17267632›Full record

ArticleJournal of clinical microbiology2007

Evaluation of the performance of the automated NucliSENS easyMAG and EasyQ systems versus the Roche AmpliPrep-AMPLICOR combination for high-throughput monitoring of human immunodeficiency virus load.

W Stevens, P Horsfield, L E Scott

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Comparison of eMAG™ versus NucliSENSJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2017
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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

3 authors.

W StevensDepartment of Molecular Medicine and Hematology, University of the Witwatersrand and the National Health Laboratory Service, Johannesburg, South Africa.
P Horsfield
L E Scott

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study presents the data of an evaluation of the automated Nuclisens easyMAG and EasyQ systems versus the Roche AmpliPrep-AMPLICOR combination for testing of high-volume human immunodeficiency virus (HIV) load. This represents a follow-up of a previous study investigating the performance of the real-time Nuclisens assay using the semiautomated NucliSENS miniMAG extraction procedure. Three hundred eighteen patient samples were analyzed using both methods. The easyMAG-EasyQ HIV type 1 system has a higher sensitivity and broader dynamic range than the Cobas AmpliPrep-AMPLICOR system when the standard Roche assay is used alone, 25 to 3,000,000 IU/ml versus 400 to 750,000 HIV RNA copies/ml, respectively. There was significant correlation between the assays (0.93; P < 0.0001), with good accuracy (percent similarity mean mu = 96%), good precision (percent similarity standard deviation = 4.97%), and overall good agreement with a low percent similarity coefficient of variation of 5.17 to 6.11%. Bland-Altman analysis revealed that the AMPLICOR assay generated higher values than the EasyQ combination, with 95% of results within clinically acceptable limits. The throughput of samples was greatly improved using the easyMAG-EasyQ system, allowing 144 samples to be processed within 6 h. The potential for contamination has been dramatically reduced using the automated extraction system. Additional negative controls have been added to the kit to monitor for contamination based on the South African experience. This assay thus presents a real option for monitoring HIV load assays in high-volume testing environments.

Indexed as

HIV-1HIV InfectionsHumansReproducibility of ResultsRNA, ViralSensitivity and SpecificityViral LoadRNA, Viral

Identifiers

PMID17267632
PMCPMC1865857

What OpenQuestion holds

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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.