Table 2. Comparative analysis of fold mRNA expression detected for interferons among TB patients and healthy family contacts.

Group	Fold mRNA expression of Interferon@
	IFN-α			IFN-β			IFN-γ
	Low	Median	High	Low	Median	High	Low	Median	High
TB Patients (n = 123)	0.2066	0.8036*	2.2420	0.01626	0.03035	0.07899	0.4588	0.7101	1.2980
Healthy family Contacts (n = 86)	0.1022	0.2348	0.8931	0.01270	0.03099	0.1032	0.5145	0.7934	1.230

(^@- fold mRNA expression calculated with reference to healthy laboratory volunteers

*—p < 0.0001 IFN-α expression in TB patients Vs Healthy family contacts)