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. 2021 Aug 10;21:798. doi: 10.1186/s12879-021-06524-7

Table 3.

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

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]