From: Performance of antigen testing for diagnosis of COVID-19: a direct comparison of a lateral flow device to nucleic acid amplification based tests
Ct values
Number
Mean
Minimum
Maximum
95%-confidence intervall
Total
74
26.5
13.0
42.7
[25.1; 28.0]
Ag correct positive
46
25.1
15.7
37.0
[23.6; 26.5]
Ag false negative
28
29.0
[26.1; 31.8]