Evidence map›Paper›PMID 42577163›Full record

ArticleIJID regions2026

Age-stratified prevalence of latent tuberculosis infection in Ulaanbaatar, Mongolia: a facility-based cross-sectional study.

Erdenegerel Narmandakh, Enkhtsetseg Tumur, Gundsuren Sharkhuu, Yuriko Igarashi, Gantungalag Ganbaatar, Naranzul Dambaa, Nyamjargal Batbayar, Gantsetseg Dorj, Tsetsegtuya Borolzoi, Odmaa Enkhtaivan and 6 more

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Article in IJID regions, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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3 · Its place in the literature

Who cites it

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No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

16 authors.

Erdenegerel NarmandakhNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Enkhtsetseg TumurNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Gundsuren SharkhuuNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Yuriko IgarashiResearch Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.
Gantungalag GanbaatarNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Naranzul DambaaNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Nyamjargal BatbayarNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Gantsetseg DorjNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Tsetsegtuya BorolzoiNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Odmaa EnkhtaivanNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Munkhzul BaatarNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Enkhbolor DavaakhuuNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Bilegtsaikhan TsolmonMongolian National University of Medical Sciences, Ulaanbaatar, Mongolia.
Sarantuya JavMongolian National University of Medical Sciences, Ulaanbaatar, Mongolia.
Buyankhishig BurneebaatarNational Center for Communicable Diseases, Ulaanbaatar, Mongolia.
Satoshi MitaraiResearch Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Mongolia has a high tuberculosis (TB) burden. This study aimed to assess the age-specific latent TB infection (LTBI) prevalence in a healthy population in Mongolia by using interferon-gamma release assays. Methods: This facility-based cross-sectional study was conducted from June 2024 to March 2025 in Ulaanbaatar. Eligible participants were asymptomatic, aged ≥10 years, had no previous TB treatment, and had no known contact with TB. LTBI was detected using the QuantiFERON-TB Gold Plus (QFT-Plus) assay. Sociodemographic data were collected using standardized questionnaires. Results: The overall QFT-Plus positivity rate in 766 eligible participants (mean age: 38.2 years; 47.1% female) was 33.4%. Age-specific positivity increased from 7.9% (participants aged 10-19 years) to 46.1% (participants aged ≥60 years, Conclusion: Ulaanbaatar's LTBI prevalence remains high, especially among older adults, suggesting a shift from recent transmission to remote infection reactivation. Although QFT-Plus positivity in young individuals remains high, our findings support the prioritization of targeted preventive strategies for older populations.

Indexed as

Age-stratifiedLatent tuberculosis infectionMongoliaQuantiFERON-TB Gold Plus

Identifiers

PMID42577163
PMCPMC13453603

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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.