Overview of the published studies on IGRA response among patients with non tuberculous mycobacterial disease.

#1 co-infected with MAC and M. abscessus. *5 patients are excluded due to indeterminate results, 17.5% had a previous history of TB +31% had a previous history of TB. ##Patients with a history of TB were excluded **Patients with a history of TB and TB contacts excluded. ++4 Patients were excluded due to indeterminate results. ###Study of patients suspected of TB. ***7 Patients were excluded due to indeterminate results. +++Data on these patients are not included in the “Total” column below. Age is expressed as median. “Others” constitute M. abscessus/chelonae, interjectum, shimoidei,simiae and xenopi (see Table 3a). Abbreviations: N.A.: not available. QTF-2G: QuantiFERON TB 2 Gold, Cellestis. QTF-GIT: QuantiFERON TB Gold-In-Tube, Cellestis. IGRA: Interferon-gamma release assay. MAC: Mycobacterium avium-intracellulare complex. T-SPOT: T-SPOT.TB, Oxford Immunotec.