TABLE 2.

Qualitative comparison of QFT-Plus and QFT-GIT assays in HCWs and patients presenting to the OCPHS TB Clinic^a

QFT-Plus result	QFT-GIT result			% agreement (95% CI)			Kappa value
	Positive	Negative	Indet.	Positive	Negative	Overall
Positive	31	2	0	91.2	98.4	96.9	0.91
Negative	3	124	0	(76.3–97.7)	(94–99.9)	(92.7–98.9)	(0.83–0.98)
Indet.	0	0	1

^aTotal n = 161. Indet., indeterminate; CI, confidence interval.