TABLE 2.

Sensitivity of RAD tests for C_T value categories^a

Sample type	n	Sensitivity (%)	95% CI
CT values <15
Oral	3	100.00	29.24–100.00
AN	3	100.00	29.24–100.00
NP	3	100.00	29.24–100.00
CT values 15 to <20
Oral	6	33.33	4.33–77.72
AN	6	100.00	54.07–100.00
NP	6	100.00	54.07–100.00
CT values 20 to <25
Oral	16	18.75	4.05–45.65
AN	16	93.75	69.77–99.84
NP	16	93.75	69.77–99.84
CT values 25 to <30
Oral	12	0.00	0.00–26.46
AN	14	35.71	12.76–64.86
NP	14	42.86	17.66–71.14
CT values 30 to <35
Oral	7	0.00	0.00–40.96
AN	7	0.00	0.00–40.96
NP	6	50.00	11.81–88.19
All CT values
Oral	44	18.18	8.19–32.71
AN	46	63.04	47.55–76.79
NP	45	73.33	58.06–85.40

^aAN, anterior nasal; NP, nasopharyngeal; CI, confidence interval; C_T, cycle threshold.