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

Table 2

Smear AFB detection and grading in spot-early morning-spot sputum specimens using direct and concentrated ZN and LED-FM microscopy method per sample analysis.

Grading	Methods
	ZN						LED-FM
	DZN			CZN			DLED-FM			CLED-FM
Samples	S1; (%)	EM; (%)	S2; (%)	S1; (%)	EM; (%)	S2; (%)	S1; (%)	EM; (%)	S2; (%)	S1; (%)	EM; (%)	S2; (%)
Negative	173 (97.2)	171 (96.1)	176 (98.9)	172 (96.6)	167 (93.8)	174 (97.7)	168 (94.4)	163 (91.6)	173 (97.2)	167 (93.8)	163 (91.6)	173 (97.2)
Positive	5 (2.8)	7 (3.9)	—	6 (3.4)	11 (6.2)	4 (2.2)	10 (5.6)	15 (8.4)	5 (2.8)	11 (6.2)	15 (8.4)	5 (2.8)