Table 2.

One 2 × 2 contingency table on rapid antigen test performance in the assessment of patients with COVID-19 among all patients.

Global population (n = 3899)	Patients COVID-19 non-infected	Patients COVID-19 infected
Negative antigen test for COVID-19	3470	68
Positive antigen test for COVID-19	32	329
Sensitivity	82.9% (81.0–84.8)
Specificity	99.1% (98.8–99.3)
Positive predictive value	91.1% (89.7–92.5)
Negative predictive value	98.1% (97.8–98.3)
Accuracy (correctly classified)	97.4% (97.1–97.6)