Systematic Review: T-Cell–based Assays for the Diagnosis of Latent Tuberculosis Infection: An Update

Figure 2.
Figure 2. Forest plot of studies estimating specificity of interferon-γ–release assays in populations at very low risk for latent tuberculous infection.

Point estimates for specificity and 95% CIs are shown along with pooled estimates. Top. QuantiFERON-TB Gold and QuantiFERON-TB Gold In-Tube (braille Calmette–Guérin [BCG] nonvaccinated; 8 studies). Middle. QuantiFERON-TB Gold and QuantiFERON-TB Gold In-Tube (BCG vaccinated; 8 studies). Bottom. T-SPOT.TB (predominantly BCG vaccinated; 6 studies).

This Article

  1. Published Ahead of Print June 30, 2008, Ann Intern Med August 5, 2008 vol. 149 no. 3 177-184
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