Evidence map›Paper›PMID 26218737›Full record

SynthesisPloS one2015

A Global Perspective on Pyrazinamide Resistance: Systematic Review and Meta-Analysis.

Michael G Whitfield, Heidi M Soeters, Robin M Warren, Talita York, Samantha L Sampson, Elizabeth M Streicher, Paul D van Helden, Annelies van Rie

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 2 pooled it
10.1field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 2 syntheses or guidelines pooled it, 146 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. The journal of physical chemistry. B · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Enhancing diagnostic efficiency of pyrazinamide resistance inCurrent research in microbial sciences · 2025
    Article
  17. Observational
  18. Article
  19. Article
  20. Review

22 more citing papers are in PubMed but not listed here.

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 at 4 institutions in 3 countries.

Michael G WhitfieldSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Heidi M SoetersDepartment of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Robin M WarrenSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Talita YorkSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Samantha L SampsonSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Elizabeth M StreicherSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Paul D van HeldenSA MRC Centre for TB Research, Stellenbosch University, South Africa; DST/NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, South Africa; Division of Molecular Biology and Human Genetics, Stellenbosch University, South Africa; Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa.
Annelies van RieDepartment of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America; International Health Unit, Epidemiology and Social Medicine, Faculty of Medicine, University of Antwerp, Antwerp, Belgium.
Stellenbosch University · ZASouth African Medical Research Council · ZAUniversity of Antwerp · BEUniversity of North Carolina at Chapel Hill · US

Funding

Training in Infectious Disease Epidemiology (TIDE)T32AI070114 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Brian W Pence · 2007 to 2026
$4.0M
Optimizing the impact of Xpert MTB/RIF on treatment outcomes of drug resistant TBR01AI099026 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI VAN RIE, ANNELIES T.A. · 2012 to 2014
$1.6M
NIAID NIH HHS R01 AI099026NIAID NIH HHS R01AI099026NIAID NIH HHS T32 AI070114
6 · The paper itself

Abstract

backgroundPyrazinamide (PZA) is crucial for tuberculosis (TB) treatment, given its unique ability to eradicate persister bacilli. The worldwide burden of PZA resistance remains poorly described.

methodsSystematic PubMed, Science Direct and Scopus searches for articles reporting phenotypic (liquid culture drug susceptibility testing or pyrazinamidase activity assays) and/or genotypic (polymerase chain reaction or DNA sequencing) PZA resistance. Global and regional summary estimates were obtained from random-effects meta-analysis, stratified by presence or risk of multidrug resistant TB (MDR-TB). Regional summary estimates were combined with regional WHO TB incidence estimates to determine the annual burden of PZA resistance. Information on single nucleotide polymorphisms (SNPs) in the pncA gene was aggregated to obtain a global summary.

resultsPooled PZA resistance prevalence estimate was 16.2% (95% CI 11.2-21.2) among all TB cases, 41.3% (29.0-53.7) among patients at high MDR-TB risk, and 60.5% (52.3-68.6) among MDR-TB cases. The estimated global burden is 1.4 million new PZA resistant TB cases annually, about 270,000 in MDR-TB patients. Among 1,815 phenotypically resistant isolates, 608 unique SNPs occurred at 397 distinct positions throughout the pncA gene.

interpretationPZA resistance is ubiquitous, with an estimated one in six incident TB cases and more than half of all MDR-TB cases resistant to PZA globally. The diversity of SNPs across the pncA gene complicates the development of rapid molecular diagnostics. These findings caution against relying on PZA in current and future TB drug regimens, especially in MDR-TB patients.

Indexed as

Antitubercular AgentsHumansMycobacterium tuberculosisPyrazinamideTuberculosis, Multidrug-ResistantAntitubercular AgentsPyrazinamide

Identifiers

PMID26218737
PMCPMC4517823
OpenAlexW1807960484

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.