Feasibility and Performance of Loop-Mediated Isothermal Amplification Assay in the Diagnosis of Pulmonary Tuberculosis in Decentralized Settings in Eastern China

Table 1

Performance of TB-LAMP for the diagnosis of pulmonary tuberculosis.

Method	Diagnostic performance measure %(95%
	Sensitivity			Specificity	PPV	NPV
	S+C+	S-C+	C+
TB-LAMP	98.6	67.7	89.2	97.5	90.1	97.3
	(95.9~100.0)	(51.3~84.2)	(83.2~95.2)	(96.0~99.0)	(84.3~95.9)	(95.6~98.9)

: positive predictive value; NPV: negative predictive value; S: smear; C: culture; CI: confidence interval.
value=0.870 (TB-LAMP vs. Culture).