Evidence map›Paper›PMID 33720468›Full record

ArticleJournal of internal medicine2021

The electronic nose as a rule-out test for tuberculosis in an indigenous population.

R Coronel Teixeira, D IJdema, C Gómez, D Arce, M Roman, Y Quintana, F González, N Jiménez de Romero, D Pérez Bejarano, S Aguirre and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of internal medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 31% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
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  5. Review
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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

11 authors at 1 institution in 1 country.

R Coronel TeixeiraFrom the, National Institute of Respiratory Diseases and the Environment (INERAM), Asunción, Paraguay.ORCID 0000-0002-4765-2917
D IJdemaDepartment of Respiratory Diseases, Radboud University Medical Centre - TB Expert Centre Dekkerswald, Nijmegen - Groesbeek, The Netherlands.
C GómezMedical Health Center, Puerto Casado, Chaco, Paraguay.
D ArceMedical Health Center, Puerto Casado, Chaco, Paraguay.
M RomanNational Tuberculosis Control Program (PCNT), Asunción, Paraguay.
Y QuintanaFrom the, National Institute of Respiratory Diseases and the Environment (INERAM), Asunción, Paraguay.
F GonzálezFrom the, National Institute of Respiratory Diseases and the Environment (INERAM), Asunción, Paraguay.
N Jiménez de RomeroFrom the, National Institute of Respiratory Diseases and the Environment (INERAM), Asunción, Paraguay.
D Pérez BejaranoFrom the, National Institute of Respiratory Diseases and the Environment (INERAM), Asunción, Paraguay.
S AguirreNational Tuberculosis Control Program (PCNT), Asunción, Paraguay.
C Magis-EscurraDepartment of Respiratory Diseases, Radboud University Medical Centre - TB Expert Centre Dekkerswald, Nijmegen - Groesbeek, The Netherlands.ORCID 0000-0001-8424-9425
Radboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTo end the tuberculosis (TB) epidemic, efficient diagnostic tools are needed. In a previous calibration study, a portable 'point of care' electronic nose device (Aeonose

methodsA total of 131 participants were enrolled. eNose results were compared with anamnesis, physical examinations, chest radiography and mycobacterial cultures in individuals with signs and symptoms compatible with TB. The eNose analysis was performed in two stages: first, the training with a combination of a previous study population plus 47 participants from the new cohort (total n = 153), and second, the 'blind prediction' of 84 participants.

results21% of all participants (n = 131) showed symptoms and/or chest radiography abnormalities suspicious of TB. No sputum samples resulted culture positive for Mycobacterium tuberculosis complex. Only one patient had a positive smell print analysis. In the training model, the specificity was 92% (95% confidence interval (CI): 85%-96%) and the negative predictive value (NPV) was 95%. In the blind prediction model, the specificity and the NPV were 99% (95% CI: 93%-99%) and 100%, respectively. Although the sensitivity and positive predictive value of the eNose could not be assessed in this cohort due to the small sample size, no active TB cases were found during a one year of follow-up period.

conclusionThe eNose showed promising specificity and negative predictive value and might therefore be developed as a rule-out test for TB in vulnerable populations.

Indexed as

Electronic NosePoint-of-Care SystemsPopulation GroupsAdultCross-Sectional StudiesFemaleHumansMaleMiddle AgedParaguayPilot ProjectsSensitivity and SpecificityTuberculosis, PulmonaryYoung Adultbreath analysiselectronic nosetuberculosisvolatile organic compoundsvulnerable groups

Identifiers

PMID33720468
PMCPMC8361912
OpenAlexW3136873428

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.