Table 1.

Analysis of sensitivity and specificity in patients with COVID-19

Group	Result				Efficiency
	TP	FP	FN	TN	Sensitivity [95% CI]	Specificity [95% CI]
High-risk vs. moderate and low-risk cases	42	19	1	30	0.98 [0.88, 1.00]	0.61 [0.46, 0.75]
Moderate- and high-risk vs. low-risk cases	43	27	0	22	1.00 [0.92, 1.00]	0.45 [0.31, 0.60]

Combined with PCR results, sensitivity and specificity analysis were carried out for the moderate- and high-risk group/non-high-risk group, as well as for the moderate- and high-risk group/low-risk group. CI, confidence interval; FP, false negative; FP, false positive; PCR, polymerase chain reaction; TN, true negative; TP: true positive. All data is true and valid.