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Table 1 Performances of SAT-TB and culture methods with clinical specimens (n = 482)

From: Application of real-time simultaneous amplification and testing method to accurately and rapidly detect extra-pulmonary tuberculosis

SAT-TB resultNo. of specimens with culture resultsMean %
PositiveNegativeSensitivitySpecificityPPVNPV
All samples  83.6%79.4%59.4%93.0%
 Positive10773    
 Negative21281    
Group A  84.3%76.1%59.4%92.1%
 Positive10773    
 Negative20233    
Group B  0%100%100%98.0%
 Positive00    
 Negative148