TABLE 2.

Receiver operating characteristic analysis to determine optimal index value thresholds from day of first positive PCR result

Minimum specificity (%)	No. of days from PCR	Threshold	Sensitivity (%)	Specificity (%)	pAUCa (%)
99.9	≥17	1.6	100.0	100.0	100.0
	≥14	1.6	100.0	100.0	100.0
	≥10	1.6	96.4	100.0	98.2
	≥7	1.6	90.7	100.0	95.3
99.8	≥17	1.6	100.0	100.0	100.0
	≥14	1.6	100.0	100.0	100.0
	≥10	1.6	96.4	100.0	98.2
	≥7	1.3	91.9	99.9	95.6
99.5	≥17	1.5	100.0	100.0	100.0
	≥14	0.8	97.9	99.6	98.6
	≥10	0.7	94.4	99.6	96.4
	≥7	0.7	88.0	99.6	92.8
99.0	≥17	1.6	100.0	100.0	100.0
	≥14	1.6	100.0	100.0	100.0
	≥10	0.7	98.2	99.6	98.8
	≥7	0.7	93.6	99.6	96.4

^apAUC, partial area under the concentration-time curve.