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. 2018 Nov 27;56(12):e00629-18. doi: 10.1128/JCM.00629-18

TABLE 4.

Stimulated TB antigen-nil IFN-γ concentration for participants with at least one positive test result

Participant	NTM infection status	Mean (IQR) IFN-γ concn (IU/ml)^a
		QFT-GIT	QFT-Plus
		QFT-GIT	Tube 1	Tube 2
1	No	0.09	0.4^a	−0.24
2	No	0.01	0.01	5.44^a
3	No	0.56^a	0.66^a	0.73^a
4	No	0.43^a	0.37^a	0.46^a
5	Yes (MAC)	1.25^a	0.54^a	0.77^a

^a

The value is above the 0.35-IU/ml cutoff point considered positive.