Diagnostic Performance of SARS-CoV-2 Rapid Antigen Test in relation to RT-PCR C_q Value

Table 4

Overall diagnostic performance evaluation of rapid antigen test.

Performance	Result
Sensitivity	63.6% (95% CI 54.7–71.9%)
Specificity	97.9% (95% CI 93.6–99.6%)
Positive likelihood	30.29 (95% CI 7.61–119.77)
Negative likelihood	0.37 (95% CI 0.293–0.473)
Positive predictive value	97.4% (95% CI 92.2–99.6%)
Negative predictive value	68.4% (95% CI 60.3–75.8%)
Accuracy	78.9%
Kappa value (κ value)	1.590 (95% CI 0.492–0.688),