Sofia performance | No. days from symptom onset prior to test | All patients | |
---|---|---|---|
< 5 days | ≥ 5 days | ||
(A) Symptomatic Patients. Symptomatic patients were stratified as < 5 days or ≥ 5 days of symptoms prior to receiving testing | |||
% Agreement | 101/104 (97.1%) | 42/44 (95.5%) | 143/148 (96.6%) |
Sensitivity | 27/30 (90%) | 9/11 (81.8%) | 36/41 (87.8%) |
Specificity | 74/74 (100%) | 33/33 (100%) | 107/107 (100%) |
PPV | 100% | 100% | 100% |
NPV | 96.1% | 94.3% | 95.5% |
Sofia performance | All asymptomatic patients | ||
---|---|---|---|
(B) Asymptomatic Patients. PPV and NPV values were calculated with the respective prevalence for each group | |||
% Agreement | 140/144 (97.2%) | ||
Sensitivity | 2/6 (33.3%) | ||
Specificity | 138/138 (100%) | ||
PPV | 100.0% | ||
NPV | 97.2% |