SARS-CoV2 | Entire cohort | Asymptomatic patients | Symptomatic patients | ||||||
---|---|---|---|---|---|---|---|---|---|
Ag positive | Ag negative | Ag positive | Ag negative | Ag positive | Ag negative | ||||
NAAT positive | 57 | 39 | 20 | 22 | 34 | 17 | |||
NAAT negative | 31 | 2983 | 25 | 2273 | 6 | 192 | |||
Sensitivity (%) | 59.4 | 47.6 | 66.7 | ||||||
Specificity (%) | 99.0 | 98.9 | 97.0 | ||||||
PPV (%) | 64.8 | 44.4 | 85.0 | ||||||
NPV (%) | 98.7 | 99.0 | 91.9 |