Performance of LED Fluorescence Microscopy for the Diagnosis of Pulmonary Tuberculosis in HIV Positive Individuals in Addis Ababa, Ethiopia

Table 3

Performance of smear microscopy using Ziehl-Neelsen and LED-FM in TB suspected HIV positive individuals per patient analysis.

	ZN		Kappa value	LED-FM		Kappa value
	Direct	Concentrated		Direct	Concentrated
Sensitivity % (90% CI)	29.2 (26.9–32.1)	45.8 (41.2–50.4)	0.767	62.5 (56.25–68.75)	62.5 (56.25–68.75)	0.743
Positive (%)	7 (3.9)	11 (6.2)		15 (8.4)	15 (8.4)
Specificity % (90% CI)	100 (90–100)	100 (90–100)		100 (90–100)	100 (90–100)
PPV %	100	100		100	100
NPV %	90.1	92.2		94.5	94.5