Table 7. AUC, standard error, P-value, and asymptotic 95% CIs of Ct values for E genes, ORF1ab genes, and RdRp genes of the STAT-NATⒷ PCR kit.

AUC: area under the curve; CI: confidence interval; Ct: cycle threshold; PCR: polymerase chain reaction

Gene	Cut-off value	AUC	Standard error	P-value.	Asymptotic 95% CI
					Lower bound	Upper bound
E	30	0.952	0.025	<0.001	0.903	1.000
ORF1ab	32	0.959	0.024	<0.001	0.912	1.000
RdRp	32	0.981	0.016	<0.001	0.949	1.000