Comparison between the Interferon γ Release Assay—QuantiFERON Gold Plus (QFT-Plus)—and Tuberculin Skin Test (TST) in the Detection of Tuberculosis Infection in Immunocompromised Children

Table 4

The comparison between the QFT-Plus and TST results in diagnosing LTBI.

QFT-Plus	TST		Total (%); (95% CI)
	Positive	Negative
Positive	3	8	11 (15.5%); (8.9–25.71)
Indeterminate	0	1	1 (1.4%); (0.2–7.6)
Negative	1	58	59 (83.1%); (72.7–90.1)
Total	4	67	71
%	(5.6%)	(94.4%)
95% CI	2.2%–3.6%	86.4%–97.8%

(McNemar test) = 0.039; (95% CI: 0.05–0. 745) (SE 0.161). TST: tuberculin skin test; QFT-Plus: QuantiFERON Gold Plus; LTBI: latent tuberculosis infection.