Table 2.

Sensitivity of each method for detection of M. tuberculosis in the initial sputum specimen from patients with culture confirmed pulmonary TB.

	AFB smear positive (N = 13)		AFB smear negative (N = 38)		Total (N = 51)
	N	Sensitivity (95% CI)	N	Sensitivity (95% CI)	N	Sensitivity (95% CI)
AFB smear microscopy	13	N/A	N/A	N/A	13	25.5 (14.3–39.6)
MGIT culture	13	100.0 (75.3–100.0)	27	71.1 (54.1–84.6)	40	78.4 (64.7–88.7)
MODS culture	13	100.0 (75.3–100.0)	20	52.6 (35.8–69.0)	33	64.7 (50.1–77.6)
MGIT + MODS culture	13	100.0 (75.3–100.0)	30	78.9 (62.7–90.4)	43	84.3 (71.4–93.0)
Xpert MTB/RIF	13	100.0 (75.3–100.0)	20	52.6 (35.8–69.0)	33	64.7 (50.1–77.6)