Evidence map›Paper›PMID 35816471›Full record

SynthesisPloS one2022

Xpert MTB/RIF Ultra versus Xpert MTB/RIF for diagnosis of tuberculous pleural effusion: A systematic review and comparative meta-analysis.

Ashutosh Nath Aggarwal, Ritesh Agarwal, Sahajal Dhooria, Kuruswamy Thurai Prasad, Inderpaul Singh Sehgal, Valliappan Muthu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2022. 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
3.2field-weighted citation impact, top 7% 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, 24 citations in OpenAlex.

  1. Pooled it
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  13. Infection and drug resistance · 2025
    Article
  14. Article
  15. Article
  16. The tuberculous pleural effusion.Breathe (Sheffield, England) · 2023
    Review
  17. Barriers and gaps in tuberculosis care and treatment in Iran: A multi-center qualitative study.Journal of clinical tuberculosis and other mycobacterial diseases · 2023
    Article
  18. Evidence-based approach to diagnosis and management of abdominal tuberculosis.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2023
    Review
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 1 institution in 1 country.

Ashutosh Nath AggarwalDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.ORCID 0000-0001-8556-3600
Ritesh AgarwalDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Sahajal DhooriaDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.ORCID 0000-0003-3199-9163
Kuruswamy Thurai PrasadDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Inderpaul Singh SehgalDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Valliappan MuthuDepartment of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Post Graduate Institute of Medical Education and Research · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe compared diagnostic accuracy of pleural fluid Xpert MTB/RIF (Xpert) and Xpert MTB/RIF Ultra (Ultra) assays for diagnosing tuberculous pleural effusion (TPE), through systematic review and comparative meta-analysis.

methodsWe searched PubMed and Embase databases for publications reporting diagnostic accuracy of Xpert or Ultra for TPE. We used bivariate random-effects modeling to summarize diagnostic accuracy information from individual studies using either mycobacterial culture or composite criteria as reference standard. We performed meta-regression through hierarchical summary receiver operating characteristic (HSROC) modeling to evaluate comparative performance of the two tests from studies reporting diagnostic accuracy of both in the same study population.

resultsWe retrieved 1097 publications, and included 74 for review. Summary estimates for sensitivity and specificity for Xpert were 0.52 (95% CI 0.43-0.60, I2 82.1%) and 0.99 (95% CI 0.97-0.99, I2 85.1%), respectively, using culture-based reference standard; and 0.21 (95% CI 0.17-0.26, I2 81.5%) and 1.00 (95% CI 0.99-1.00, I2 37.6%), respectively, using composite reference standard. Summary estimates for sensitivity and specificity for Ultra were 0.68 (95% CI 0.55-0.79, I2 80.0%) and 0.97 (95% CI 0.97-0.99, I2 92.1%), respectively, using culture-based reference standard; and 0.47 (95% CI 0.40-0.55, I2 64.1%) and 0.98 (95% CI 0.95-0.99, I2 54.8%), respectively, using composite reference standard. HSROC meta-regression yielded relative diagnostic odds ratio of 1.28 (95% CI 0.65-2.50) and 1.80 (95% CI 0.41-7.84) respectively in favor of Ultra, using culture and composite criteria as reference standard.

conclusionUltra provides superior diagnostic accuracy over Xpert for diagnosing TPE, mainly because of its higher sensitivity.

Indexed as

Antibiotics, AntitubercularMycobacterium tuberculosisPleural EffusionTuberculosisHumansRifampinSensitivity and SpecificityAntibiotics, AntitubercularRifampin

Identifiers

PMID35816471
PMCPMC9273090
OpenAlexW4285011907

What Socratic 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 Socratic graph.