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Table 3 Performance of Xpert assay for detection of TB against LJ culture (n = 332)

From: Light-emitting diode fluorescent microscopy and Xpert MTB/RIF® assay for diagnosis of pulmonary tuberculosis among patients attending Ambo hospital, west-central Ethiopia

Characteristics

Value (%)

95% CI

Sensitivity

93.3

81.7–98.6%

Specificity

98.0

95.6–99.2%

PPV

87.5

74.8–95.3%

NPV

98.9

97.0–99.8%

  1. PPV positive predictive value, NPV negative predictive value, CI confidence interval
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BMC Infectious Diseases

ISSN: 1471-2334

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