Evidence map›Paper›PMID 32182640›Full record

ArticleIntestinal research2020

Concordance between tuberculin skin test and interferon-gamma release assay for latent tuberculosis screening in inflammatory bowel disease.

Saad Alrajhi, Pascale Germain, Myriam Martel, Peter Lakatos, Talat Bessissow, Talal Al-Taweel, Waqqas Afif

Open access · diamondAbstract read
In one paragraph

Article in Intestinal research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
0.3field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. S3 Guideline for the Treatment of Psoriasis vulgaris, adapted from EuroGuiDerm - part 2: Specific clinical and comorbid situations.Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG · 2026
    Guideline
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Review
  7. [Latent and Active Tuberculosis Infection in Patients with Inflammatory Bowel Disease].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2022
    Review
  8. Article
  9. Review
  10. 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

7 authors at 2 institutions in 2 countries.

Saad AlrajhiDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Pascale GermainDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Myriam MartelDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Peter LakatosDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Talat BessissowDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Talal Al-TaweelDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
Waqqas AfifDepartment of Gastroenterology, McGill University, Montreal, QC, Canada.
McGill University · CASemmelweis University · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsLatent tuberculosis screening is mandatory prior to initiating anti-tumor necrosis factor (anti-TNF) medications. Guidelines recommend interferon-gamma release assays (IGRA) as first line screening method for the general population. Studies provided conflicting evidence on IGRA and tuberculin skin test (TST) performance in inflammatory bowel disease (IBD) patients. We assessed test concordance and the effects of immunosuppression on their performance in IBD patients.

methodsWe searched MEDLINE, Embase and Cochrane databases (2011-2018) for studies testing TST and IGRA in IBD. Primary outcome was TST and IGRA concordance. Secondary outcomes were effects of immunosuppressive therapy on performance. Immunosuppression defined as either steroids, thiopurine, methotrexate or cyclosporine use. We used the pooled random effects model to adjust for heterogeneity analyzed using (I2-Q statistics). We compared the fixed model to exclude smaller study effects.

resultsSixteen studies (2,488 patients) were included. Pooled TST and IGRA concordance was 85% (95% confidence interval [CI], 81%-88%; P=0.01). Effects of immunosuppression were reported in 8 studies (814 patients). The odds ratio of testing positive by IGRA decreased to 0.57 if immunosuppressed (95% CI, 0.31-1.03; P=0.06). The odds ratio of testing positive by TST if immunosuppressed was 1.14 (95% CI, 0.61-2.12; P=0.69). The fixed model yielded similar results, however the negative effect of immunosuppression on IGRA reached statistical significance (P=0.01).

conclusionsWhile concordance was 85% between TST and IGRA, the performance of IGRA seems to be negatively affected by immunosuppression. Given the importance of detecting latent tuberculosis prior to anti-TNF initiation, further randomized controlled trials comparing the performance of TST and IGRA in IBD patients are needed.

Indexed as

Colitis, ulcerativeCrohn diseaseInflammatory bowel diseaseTuberculosis

Identifiers

PMID32182640
PMCPMC7385575
OpenAlexW3011938208

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.