Table 4

The performance of the SVM model in diagnosing Mtb infection among HIV-positive inpatients with negative IGRA

ParameterSVM (n=41)
AUC0.84 (0.77 to 0.92)
Accuracy66% (58% to 74%)
Specificity61% (50% to 70%)
Sensitivity80% (65% to 91%)
NPV88% (78% to 95%)
PPV46% (34% to 58%)
  • Data in parentheses represent 95% CI.

  • AUC, area under the curve; IGRA, interferon-gamma release assay; NPV, negative predictive value; PPV, positive predictive value; SVM, support vector machine.