Table 2: Performances of Zeihl-Neelsen, Xpert MTB/RIF assay and culture results, Addis Ababa, Ethiopia.

Diagnostic Tests Under Evaluation Mycobacterium Culture Results -
- Positive (%) Negative (%) Total (%)
ZN-Results Positive (%) 80(32.79) 6(2.46) 86(35.25)
Negative (%) 37(15.16) 121(49.59) 158(64.75)
Total 117(47.95) 127(52.05) 244(100)
Xpert MTB/RIF Results Positive (%) 104 (42.62) 23(9.43) 127(52.05)
Negative (%) 13 (5.33) 104(42.42) 117(47.95)
Total 117(47.95) 127(52.05) 244 (100)