Figure 1.

Prevalence of latent tuberculosis infection by stage of pregnancy in women infected with HIV. (A) Cross-sectionally, there was insignificantly lower percent positivity of TST and QGIT at delivery versus during pregnancy but significant discordance between TST and QGIT. (B) In the longitudinal cohort, there was a decrease in QGIT-positive results at delivery with rebound postpartum, although these were not significant changes. The TST, however, mirrored the changes in the QGIT with increased positivity at delivery and a decrease postpartum, suggesting that decreased TST performance is more related to HIV than pregnancy. QGIT = QuantiFERON TB Gold In-Tube test; TST = tuberculin skin test.