Evidence map›Paper›PMID 18199741›Full record

ArticleClinical and vaccine immunology : CVI2008

Reproducibility of QuantiFERON-TB gold in-tube assay.

Sharon Perry, Luz Sanchez, Shufang Yang, Zubin Agarwal, Philip Hurst, Julie Parsonnet

Open access · diamondAbstract readEvaluation Study
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 3% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. High reproducibility of the interferon-gamma release assay T-SPOT.TB in serial testing.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2021
    Article
  6. Article
  7. The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2017
    Article
  8. Article
  9. Review
  10. Antigen-Specific IFN-Journal of immunology research · 2016
    Article
  11. Article
  12. Article
  13. Tuberculosis: medico-legal aspects.Mediterranean journal of hematology and infectious diseases · 2014
    Review
  14. Article
  15. Article
  16. Article
  17. Test variability of the QuantiFERON-TB gold in-tube assay in clinical practice.American journal of respiratory and critical care medicine · 2013
    Article
  18. Article
  19. Article
  20. Article
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 2 institutions in 1 country.

Sharon PerryDivision of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California 94305-5407, USA. shnperry@stanford.edu
Luz Sanchez
Shufang Yang
Zubin Agarwal
Philip Hurst
Julie Parsonnet
Stanford University · USSanta Clara Valley Health and Hospital System · US

Funding

EPIDEMIOLOGY OF HELICOBACTER PYLORI TRANSMISSIONR01AI042801 · NIAID · STANFORD UNIVERSITY · PI PARSONNET, JULIE · 1999 to 2010
$6.2M
Immunoepidemiology of Concomittant InfectionK23AI054443 · NIAID · STANFORD UNIVERSITY · PI PERRY, SHARON · 2004 to 2008
$657k
NIAID NIH HHS K23 AI054443NIAID NIH HHS R01 AI042801
6 · The paper itself

Abstract

Studies are needed to characterize the reproducibility of QuantiFERON-TB Gold (QFT-G) for targeted U.S. screening populations. Members of northern California households were tested with the QFT-G in-tube assay (QFT-G-IT) at two home visits 3 months apart. Reproducibility and agreement with the tuberculin skin test (TST) were assessed. Monte Carlo simulation was used to evaluate the role of test-related error. Of 63 individuals (49 adults and 14 children) completing QFT-G-IT at both time points, 79% were foreign-born (98% from Latin America) and 68% reported Mycobacterium bovis BCG vaccination. At the baseline visit, 23 (37%) were TST positive and 15 (24%) were QFT-G-IT positive (kappa = 0.48 [+/- 0.11]). At 3 months, 3/48 (6.3%; 95% confidence interval [95CI], 2 to 17) of those initially QFT-G-IT negative converted, and 5/15 (33%; 95CI, 15 to 58) of those initially QFT-G-IT positive reverted. Among the 8 individuals with inconsistent QFT-G-IT results, the maximum gamma interferon response at either visit was 0.68 IU/ml versus means of 4.99 (+/- 3.74) and 6.95 (+/- 5.6) for 10 persistent positives at the first and second visits, respectively. Expected false-reversion and -conversion rates were 32% (90CI, 25 to 39%) and 6.95% (90CI, 4.6 to 9.8%) when the sensitivity and specificity were assumed to average 70% and 98%, respectively. Transient responses to QFT-G-IT are common, and low positive results need to be interpreted with caution. Further studies are needed to characterize the predictive value of the test for U.S. foreign-born and other targeted screening populations.

Indexed as

Emigration and ImmigrationImmunoassayReagent Kits, DiagnosticAdultChildChild, PreschoolFemaleHumansInterferon-gammaMaleMass ScreeningMiddle AgedMonte Carlo MethodPrevalenceReproducibility of ResultsSensitivity and SpecificityInterferon-gammaReagent Kits, Diagnostic

Identifiers

PMID18199741
PMCPMC2268272
OpenAlexW2122689695

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.