Skip to main content

Table 4 Description of frequencies related to the TST and IGRA result, according to the risk for LTBI in 90 HIV-infected patients studied

From: Interferon-γ release assay as a sensitive diagnostic tool of latent tuberculosis infection in patients with HIV: a cross-sectional study

Test type Results Risk Total
High Low
TST Positive 48 11 59
Negative 21 10 31
Total 69 21 90
IGRA Positive 68 7 75
Negative 1 14 15
Total 69 21 90
  1. TST tuberculin skin test, IGRA Interferon-γ release assay, LTBI Latent tuberculosis infection; TST and risk (Fisher, p = 0.191). TST and risk (Kappa: 0.147, 90% CI: 0.000–0.315); IGRA and risk (Fisher, p < 0.001); IGRA and risk (Kappa: 0.724, 90% CI: 0.555–0.894)