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In Won Park 1 Article
The Usefulness of the Tuberculosis Skin Test and the Interferon-gamma Release Assay in the Diagnosis of Latent Tuberculosis Infection in South Korea
Ju Young Jang, In Won Park, Byoung Whui Choi, Jae Chol Choi
Osong Public Health Res Perspect. 2014;5(Suppl):S18-S23.   Published online December 31, 2014
DOI: https://doi.org/10.1016/j.phrp.2014.10.009
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  • 3 Crossref
AbstractAbstract PDF
Objectives
South Koreans receive the bacillus Calmette-Guerin (BCG) vaccination, which influence the result of the tuberculin skin test (TST); however, only a few studies have described the usefulness of the TST and interferon-γ release assay (IGRA) for diagnosing latent TB infection (LTBI). Therefore, our aim was to determine the usefulness of the TST and IGRA for diagnosing LTBI in a household contacts investigation.
Methods
We reviewed the 329 household contacts who visited Chung-Ang University Hospital (Seoul, Korea) from May 1, 2011 to February 28, 2014. To evaluate the effectiveness of TST and IGRA for the diagnosis of LTBI, we examined the concordance rate between the two tests, based on age. We also evaluated the risk factors for LTBI.
Results
The concordance rate between the two tests in individuals 0–24 years, 25–54 years, and over 55 years were 82.6% (κ = 0.64, p < 0.01), 68.9% (κ = 0.40, p < 0.01), and 68.4% (κ = 0.35, p < 0.01), respectively. The ratio of positive TST to negative IGRA was higher in individuals 25–44 years old, whereas the ratio of negative TST to positive IGRA was higher in individuals older than 55 years old. Based on the TST, the risk factor for LTBI was a cavity (p < 0.01). When using IGRA, the risk factors were contact time (p = 0.04) and age over 55 years old (p = 0.02).
Conclusion
The concordance rate between TST and IGRA was not good after the age of 25 years. The IGRA test reflects the known risk factors more exactly.

Citations

Citations to this article as recorded by  
  • Household tuberculosis contact investigation in a tuberculosis-prevalent country
    Jung Seop Eom, Insu Kim, Won-Young Kim, Eun-Jung Jo, Jeongha Mok, Mi-Hyun Kim, Kwangha Lee, Ki Uk Kim, Hye-Kyung Park, Min Ki Lee
    Medicine.2018; 97(3): e9681.     CrossRef
  • QuantiFERON-TB Gold In-tube test for the diagnosis of active and latent tuberculosis in selected health facilities of Addis Ababa, Ethiopia
    Selam Niguse, Kassu Desta, Gebremdihin Gebremichael, Atsebeha Gebrezgeaxier, Mulluwork Getahun, Desta Kassa
    BMC Research Notes.2018;[Epub]     CrossRef
  • Predictors for false-negative QuantiFERON-TB Gold assay results in patients with extrapulmonary tuberculosis
    Youn Jeong Kim, Ji Young Kang, Sang Il Kim, Mee Soo Chang, Yang Ree Kim, Yeon Joon Park
    BMC Infectious Diseases.2018;[Epub]     CrossRef

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