Table 2.

Receiver operating characteristic (ROC) analysis of normalized expression values, via quantitative real-time PCR, to classify recent close TB contacts from G.I (low probability of latent tuberculosis infection) and patients with tuberculosis (G.IV) in the Brazilian cohort.

Gene	AUC	Sensitivity (%)	Specificity (%)	Cut-off point¥
	[95% CI]
DOCK9	0.66 [0.46–0.86]	19 [7–39]	91.7 [62–100]	>0.481
EPHA4	0.73 [0.56–0.90]	53.4 [33–73]	91.7 [62–100]	>0.160
NPC2	0.88 [0.77–0.99]	84.6 [65–96]	91.7 [62–100]	>0.133

^¥normalized expression values.