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Table 2 Documented COI values measured with fluorescent immunoassay readers analyzing the 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

COI Number Mean Minimum Maximum 95%-confidence intervall
Total 2460 0.76 0 58.16 [0.57; 0.94]
NAAT positive 75 19.22 0 58.16 [14.84; 23.62]
NAAT negative 2237 0.17 0 5.80 [0.16; 0.19]
Ag false positive 27 1.67 1.00 5.80 [1.25; 2.09]
Ag false negative 25 0.22 0 0.96 [0.12; 0.32]