Correlation between the tuberculin skin test and T‑SPOT.TB in patients with suspected tuberculosis infection: A pilot study

  • Authors:
    • Jing Yang
    • Weiliang Kong
    • Ning Xv
    • Xiaoping Huang
    • Xueqing Chen
  • View Affiliations

  • Published online on: July 18, 2019     https://doi.org/10.3892/etm.2019.7791
  • Pages: 2250-2254
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Abstract

T‑SPOT.TB is a novel screening method for Mycobacterium tuberculosis infection. However, it is controversial whether T‑SPOT.TB should become an alternative method to the tuberculin skin test (TST) for screening M. tuberculosis infections. The present study aimed to evaluate this issue based on the retrospective analysis of clinical cases. TST and T‑SPOT.TB tests were used on patients with suspected M. tuberculosis infection on admission. Demographic data and clinical information, including previous history of M. tuberculosis infection, were collected. A total of 118 patients were included in the analysis, among whom 30 (25.4%) were diagnosed with active M. tuberculosis infection, and seven patients (5.9%) were currently receiving immunosuppressive treatment. The overall sensitivity and specificity of the TST were 76.7 and 77.3%, respectively, while they were 88.3 and 68.1%, respectively, for the T‑SPOT.TB test. Patients with large TST indurations had a higher number of gamma interferon‑producing T cells among peripheral blood mononuclear cells compared with those of TST‑negative patients. In conclusion, the T‑SPOT.TB test had a higher sensitivity than the TST, but the difference was not statistically significant. Neither the T‑SPOT.TB test nor the TST was sufficiently accurate to detect active M. tuberculosis infection.

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September 2019
Volume 18 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Copy and paste a formatted citation
APA
Yang, J., Kong, W., Xv, N., Huang, X., & Chen, X. (2019). Correlation between the tuberculin skin test and T‑SPOT.TB in patients with suspected tuberculosis infection: A pilot study. Experimental and Therapeutic Medicine, 18, 2250-2254. https://doi.org/10.3892/etm.2019.7791
MLA
Yang, J., Kong, W., Xv, N., Huang, X., Chen, X."Correlation between the tuberculin skin test and T‑SPOT.TB in patients with suspected tuberculosis infection: A pilot study". Experimental and Therapeutic Medicine 18.3 (2019): 2250-2254.
Chicago
Yang, J., Kong, W., Xv, N., Huang, X., Chen, X."Correlation between the tuberculin skin test and T‑SPOT.TB in patients with suspected tuberculosis infection: A pilot study". Experimental and Therapeutic Medicine 18, no. 3 (2019): 2250-2254. https://doi.org/10.3892/etm.2019.7791