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. 2020 Aug 4;35(6):758–767. doi: 10.1007/s12250-020-00273-8

Table 1.

Correlation between Ct values of RPP30 and detection results of SARS-CoV-2 RNA in sputums

Patient Test (n) Ct value of RPP30
≤ 21.53 21.53–24.47 > 24.47
SARS-CoV-2 RNA (N or ORF1ab region) +/+ ± −/− +/+ ± −/− +/+ ± −/−
P1 4 1 1 2
P2 6 1 3 2
P3 11 1 3 4 1 2
P4 5 1 2 2
P5 8 3 1 2 2
P6 7 1 3 1 2
P7 7 4 2 1
P8 10 2 3 5
P9 12 2 5 1 2 2
P10 5 2 1 1 1
P11 3 2 1
P12 7 3 2 1 1
P13 7 4 2 1
P14 13 5 5 3
P15 4 1 1 1 1
Total 109 31 1 21 28 3 3 22