Table 4. Sensitivity of self- and healthcare worker-taken swab for rapid diagnostic testing by RT-PCR CT ranges.

	RT-PCR CT range
	<20	20–24.9	25–29.9	30–34.9	≥35
Self-taken RDT
Positive	32	22	12	1	0
Negative	0	1	3	2	1
Indeterminate	0	1	0	0	0
Sensitivity	100.0%	91.7%	80.0%	33.3%	0%
95% CI	89.1–100.0%	73.0–99.0%	51.9–95.7%	0.8–90.6%	0.0–97.5%
Cumulative sensitivity	100.0%	96.4%	93.0%	90.5%	89.3%
95% CI	89.1–100.0%	87.7–99.6%	84.3–97.7%	81.5–96.1%	80.1–95.3%
HCW RDT
Positive	32	20	6	1	0
Negative	0	4	9	2	1
Indeterminate	0	0	0	0	0
Sensitivity	100%	83.3%	40.0%	33.3%	0.0%
95% CI	89.1–100.0%	62.6–95.3%	16.3–67.7%	0.8–90.6%	0.0–97.5%
Cumulative sensitivity	100.0%	92.9%	81.7%	79.7%	78.7%
95% CI	89.1–100.0%	82.7–98.0%	70.7–89.9%	68.8–88.2%	67.6–87.3%