Table 4.

Characterization of Specimens by Laboratory Methods

Bacteriologic classification
Smear and culture negative	199 (68)
Smear negative and culture positive	22 (7)
Smear and culture positive	73 (25)
Scanty	11 (15)
+	14 (19)
++	15 (21)
+++	33 (45)
Molecular classification of TB by Xpert MTB/RIF (SOC, raw sputum)
Xpert MTB/RIF MTB positive	92 (31)
Xpert MTB/RIF RIF resistance	6/92 (6.5)

Data are given as number (percentage).

+, 1 to 9 acid-fast bacilli per 100 fields; ++, 1 to 9 acid-fast bacilli per 10 fields; +++, 1 to 9 acid-fast bacilli per 1 field; MTB, Mycobacterium tuberculosis; RIF, rifampicin; SOC, standard of care; TB, tuberculosis.