Evidence map›Paper›PMID 31811239›Full record

ArticleScientific reports2019

Low diagnostic accuracy of Xpert MTB/RIF assay for extrapulmonary tuberculosis: A multicenter surveillance.

Mohammadreza Allahyartorkaman, Mehdi Mirsaeidi, Gholamreza Hamzehloo, Sirus Amini, Mona Zakiloo, Mohammad Javad Nasiri

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 8 pooled it
3.6field-weighted citation impact, top 6% 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

35 citing papers in PubMed, 8 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
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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 3 institutions in 2 countries.

Mohammadreza AllahyartorkamanRegional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran. mu.alahyar@gmail.com.
Mehdi MirsaeidiDepartment of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy, University of Miami, Coral Gables, Florida, USA.ORCID http://orcid.org/0000-0001-5298-8442
Gholamreza HamzehlooRegional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran.
Sirus AminiRegional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran.
Mona ZakilooRegional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran.
Mohammad Javad NasiriDepartment of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. mj.nasiri@hotmail.com.ORCID http://orcid.org/0000-0002-3279-0671
Tehran University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRUniversity of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diagnostic accuracy of Xpert MTB/RIF assay for pulmonary tuberculosis (PTB) and extrapulmonary TB (EPTB) has not been investigated in Iran. This study was aimed to assess the diagnostic accuracy of Xpert MTB/RIF assay for both PTB and EPTB. A total of 2111 clinical samples (1218 pulmonary and 838 extra-pulmonary) were collected from 16 medical centers during the study period and were analyzed for detection of PTB and EPTB by both Xpert MTB/RIF assay and standard conventional methods (culture and direct smear microscopy). The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of Xpert MTB/RIF assay for PTB were found to be 95.5%, 96.7%, 83.8%, and 99.1% respectively. For EPTB, the sensitivity, specificity, PPV and NPV of Xpert MTB/RIF assay counted for 76.5%, 95.9%, 62%, and 97.9% respectively. Xpert MTB/RIF assay found to be highly sensitive, specific and comparable to standard conventional methods for the diagnosis of PTB. However, the sensitivity and specificity of Xpert MTB/RIF for EPTB specimens were highly variable; thus, Xpert MTB/RIF cannot be recommended to replace standard conventional tests for diagnosis of EPTB.

Indexed as

Antibiotics, AntitubercularCross-Sectional StudiesDrug Resistance, BacterialHumansIranMolecular Diagnostic TechniquesMycobacterium tuberculosisPredictive Value of TestsReproducibility of ResultsRifampinSensitivity and SpecificitySputumTuberculosisTuberculosis, PulmonaryAntibiotics, AntitubercularRifampin

Identifiers

PMID31811239
PMCPMC6898377
OpenAlexW2994047626

What OpenQuestion holds

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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.