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Table 3 Detection of TB using different diagnostic tools among presumptive smear negative pulmonary TB patients, August 01, 2017- January 05, 2018

From: Prevalence of tuberculosis, multidrug resistant tuberculosis and associated risk factors among smear negative presumptive pulmonary tuberculosis patients in Addis Ababa, Ethiopia

Diagnostic Method

Negative Result No. (%)

Positive Result No. (%)

Total No. (%)

Contaminated (%)

NTM (%)

Xpert MTB/RIF assay

391 (93.5)

27 (6.5)

418 (100)

NA

NA

MGIT culture result

354 (92.65)

24 (6.35)

378 (100)

34 (8.25)

06

LJ culture result

376 (94.47)

22 (5.53)

398 (100)

18 (4.3)

01

LJ and MGIT culture result

382 (93.6)

26 (6.4)

408 (100)

03 (0.73)

07