Matrix of RT-PCR and LFT findings along with calculated sensitivity, specificity, positive and negative predictive values
| RT-PCR positive | RT-PCR negative | % (95% CI) | |
| LFT positive | 2 | 0 | PPV 100% (18% to 100%) |
| LFT negative | 6 | 418 | NPV 99% (97% to 99%) |
| % (95% CI) | Sensitivity 25% (4% to 59%) | Specificity 100% (99% to 100%) |
LFT, lateral flow test; NPV, negative predictive value; PPV, positive predictive value; RT-PCR, reverse transcriptase PCR.