Skip to main content

Table 3 Evaluation of Ct values of patients tested positive or false negative by antigen test

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

13.0

42.7

[26.1; 31.8]