Diagnostic Yield of Fluorescence and Ziehl-Neelsen Staining Techniques in the Diagnosis of Pulmonary Tuberculosis: A Comparative Study in a District Health Facility

Table 4

Receiver operator characteristic (ROC) curve parameters.

Technique	Sensitivity	Specificity	AUC	95%CI	P-value
Fluorescence	84.5%	100%	0.923	0.876-0.969	p≤0.001
ZN	54.8%	100%	0.774	0.702-0.846	p≤0.001

Xpert MTB/Rif used as reference diagnostic test; AUC: area under curve. Data is represented in percentages. P-value is statistically significant if p < 0.05 as compared between Xpert MTB/Rif and fluorescence microscopy, Xpert MTB/Rif, and Ziehl-Neelsen.