Evidence map›Paper›PMID 22560387›Full record

ArticleEuropean journal of internal medicine2012

In routine UK hospital practice T-SPOT.TB™ is useful in some patients with a modest pre-test probability of active tuberculosis.

Lance Turtle, Tim Kemp, Geraint R Davies, S Bertie Squire, Nick J Beeching, Michael B J Beadsworth

Abstract read
In one paragraph

Article in European journal of internal medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Hepatic and Intra-abdominal Tuberculosis: 2016 Update.Current infectious disease reports · 2016
    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 2 institutions in 1 country.

Lance TurtleTropical and Infectious Disease Unit, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK.
Tim Kemp
Geraint R Davies
S Bertie Squire
Nick J Beeching
Michael B J Beadsworth
Royal Liverpool University Hospital · GBUniversity of Liverpool · GB

Funding

Wellcome Trust 083851
6 · The paper itself

Abstract

objectiveto assess the usefulness of the T-SPOT.TB™ interferon-gamma release assay (IGRA), as used in a regional hospital infectious diseases unit in Northwest England, for the diagnosis of active tuberculosis.

designRetrospective case series.

resultsT-SPOT.TB™ test was applied to a group of 64 patients, 20 of whom had tuberculosis (mostly extra-pulmonary tuberculosis). The T-SPOT.TB™ test had a sensitivity of 83.3% and a specificity of 75% for the diagnosis of active tuberculosis, compared with culture. A positive IGRA approximately doubled the pre-test probability of disease from 0.23 to 0.5. This doubling of probability was true regardless of HIV status, though for HIV+ patients the sensitivity was lower (sensitivity 66.7%, post test probability 0.4 for a positive IGRA result). When extrapolated to the local population the test was most useful for exclusion of disease; post test probability 0.006 (or 1 in 167) for a negative IGRA result.

conclusionAlthough it can add weight to a clinical diagnosis, T-SPOT.TB™ assay is not reliable for the diagnosis of active tuberculosis in a real world setting where the test is often used in patients with smear negative or extra-pulmonary disease. The test is useful for ruling out disease in HIV negative patients.

Indexed as

Interferon-gamma Release TestsAdolescentAdultAgedEnzyme-Linked Immunosorbent AssayHumansMiddle AgedMycobacterium tuberculosisReproducibility of ResultsRetrospective StudiesSensitivity and SpecificityTuberculosisUnited KingdomYoung Adult

Identifiers

PMID22560387
PMCPMC3640181
OpenAlexW2148167678

What OpenQuestion holds

Textmetadata
LicenceTDM
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.