Ann Lab Med.  2016 Jan;36(1):76-78. 10.3343/alm.2016.36.1.76.

Repeatability of QuantiFERON-TB Gold In-Tube Assay Results Near Cut-Off Points

Affiliations
  • 1Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, Korea. progreen@dau.ac.kr

Abstract

No abstract available.


MeSH Terms

Humans
Interferon-gamma Release Tests
Latent Tuberculosis/diagnosis
Prospective Studies
Reproducibility of Results
Tuberculosis, Pulmonary/*diagnosis

Figure

  • Fig. 1 Bland-Altman plots for the first-second response differences for nil (A), mitogen (B), and TB responses (C); the analysis showed mean differences of -0.02 IU/mL, -0.2 IU/mL, and 0.03 IU/mL, respectively. The lower and upper limits of agreement (mean difference±1.96 SD) were -0.5 IU/mL and 0.5 IU/mL for the nil response, -2.6 IU/mL and 2.2 IU/mL for the mitogen response, and -0.5 IU/mL and 0.6 IU/mL for the TB response, respectively. Mitogen1 indicated initial result for initial mitogen stimulation and mitogen2 indicated second result for second mitogen stimulation.Abbreviation: TB, tuberculosis.


Reference

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