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Table 2 Prevalence of LTBI by TST and QFTGIT test

From: Community-based cross-sectional survey of latent tuberculosis infection in Afar pastoralists, Ethiopia, using QuantiFERON-TB Gold In-Tube and tuberculin skin test

Test and Cut-off point Number (%)
TST (n = 587)  
0 mm (anergy) 282 (48.0)
>0 mm & <5 mm 34 (5.8%)
≥ 5 mm & < 10 mm 88 (15.0)
≥ 10 mm 183 (31.2)
QFTGIT (n = 570)  
≥ 0.35 IU/ml 363 (63.7)
≥ 0.1 IU/ml 427 (74.9)
QFTGIT &TST (n = 505)  
≥ 0.35 IU/ml & ≥ 10 mm 151(29.9)
≥ 10 mm 168 (33.3)
≥ 0.35 IU/ml 326 (64.6)