PCR test results

Positive

Negative

Total

Ag-RDT results

Positive

68

0

68

Negative

19

264

283

Sensitivity

78.16% (95% CI = 68.02% - 86.31%)

Specificity

100.0% (95% CI = 98.61% - 100.0%)

PPV

100.0%

NPV

94.59% (95% CI = 90.33% - 95.39%)