Evidence map›Paper›PMID 22170917›Full record

ArticleJournal of clinical microbiology2012

First worldwide proficiency study on variable-number tandem-repeat typing of Mycobacterium tuberculosis complex strains.

Jessica L de Beer, Kristin Kremer, Csaba Ködmön, Philip Supply, Dick van Soolingen, Global Network for the Molecular Surveillance of Tuberculosis 2009

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Journal of clinical microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.8field-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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Emergence ofFrontiers in public health · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Compilation of 10 Years of MIRU-VNTR Data: Canadian National Tuberculosis Laboratory's Experience.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 4 countries.

Jessica L de BeerNational Tuberculosis Reference Laboratory, Laboratory for Infectious Diseases and Perinatal Screening, Centre for Infectious Disease Control, National Institute for PublicHealth and the Environment, Bilthoven, Netherland.
Kristin Kremer
Csaba Ködmön
Philip Supply
Dick van Soolingen
Global Network for the Molecular Surveillance of Tuberculosis 2009
European Centre for Disease Prevention and Control · SEInserm · FRNational Institute for Public Health and the Environment · NLRadboud University Nijmegen · NLWorld Health Organization Regional Office for Europe · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although variable-number tandem-repeat (VNTR) typing has gained recognition as the new standard for the DNA fingerprinting of Mycobacterium tuberculosis complex (MTBC) isolates, external quality control programs have not yet been developed. Therefore, we organized the first multicenter proficiency study on 24-locus VNTR typing. Sets of 30 DNAs of MTBC strains, including 10 duplicate DNA samples, were distributed among 37 participating laboratories in 30 different countries worldwide. Twenty-four laboratories used an in-house-adapted method with fragment sizing by gel electrophoresis or an automated DNA analyzer, nine laboratories used a commercially available kit, and four laboratories used other methods. The intra- and interlaboratory reproducibilities of VNTR typing varied from 0% to 100%, with averages of 72% and 60%, respectively. Twenty of the 37 laboratories failed to amplify particular VNTR loci; if these missing results were ignored, the number of laboratories with 100% interlaboratory reproducibility increased from 1 to 5. The average interlaboratory reproducibility of VNTR typing using a commercial kit was better (88%) than that of in-house-adapted methods using a DNA analyzer (70%) or gel electrophoresis (50%). Eleven laboratories using in-house-adapted manual typing or automated typing scored inter- and intralaboratory reproducibilities of 80% or higher, which suggests that these approaches can be used in a reliable way. In conclusion, this first multicenter study has documented the worldwide quality of VNTR typing of MTBC strains and highlights the importance of international quality control to improve genotyping in the future.

Indexed as

Minisatellite RepeatsAutomationBacterial Typing TechniquesHumansMycobacterium tuberculosisQuality ControlReproducibility of Results

Identifiers

PMID22170917
PMCPMC3295139
OpenAlexW2098046527

What OpenQuestion holds

Textmetadata
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.