Fig. 8. Risk probability and sampling quality assessment from CT value and ΔTm. (A) CT risk probability formula (σCT) and probability graph for CT value. Dash line represent 0.5 probability at CT 35 (black), and 0.05 probability at CT 36 (blue). (B) Tm risk probability formula (σ|ΔTm|) and probability graph for |ΔTm|. Dash line represent 0.05 probability at 0.5 probability at 0.2 |ΔTm| (black), and 0.3 |ΔTm| (green). (C) SARS-CoV-2 risk probability formula (σCOVID19), quality probability formula (σQuality) and probability graph for σCOVID19, and σQuality. (D) Summary bar graph for σQuality (green) and σCOVID19 (purple) for Pharyn/Manual, Pharyn/Kit, Saliva/Kit, Saliva/1-step Kit, and SARS-CoV-2 positive controls. σQuality in SARS-CoV-2 is not included. Dotted line indicates p=0.05. Data are represented as the mean±S.E.M. (E) Flow chart for automatic SARS-CoV-2 risk assessment process.
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