Table 2 Q-POC test performance.

From: The QuantuMDx Q-POC SARS-CoV-2 RT-PCR assay for rapid detection of COVID-19 at point-of-care: preliminary evaluation of a novel technology

Cut-off (Ct)

Total

TP

TN

FP

FN

Sensitivity (95% CI)

Specificity (95% CI)

NPV (95% CI)

PPV (95% CI)

< 40

147

32

106

1

8

80.0% (64.4–91.0)

99.1% (94.9–100)

93.0% (87.7–96.1)

97.0% (81.9–99.6)

< 35

147

31

113

2

1

96.9% (83.8–99.9)

98.3% (93.9–99.8)

99.1% (94.3–99.9)

93.9% (79.7–98.4)

  1. TP true positives, TN true negatives, FP false positives, FN false negatives, PPV positive predictive value, NPV negative predictive value, CI confidence interval.
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