Evaluation of self-administered antigen testing in a college setting

Table 2 Results of paired testing for SARS-CoV-2 infection among asymptomatic students and staff at a Georgia college, March 2021

	rRT-PCR result
	Positive	Negative	Total
Paired self-administered antigen test result
Positive	2	0	2
Negative	2	661	663
Total	4	661	665
Sensitivity: 50% (95% CI^a: 6.8, 93.2)		Specificity: 100% (95% CI^a: 99.4, 100)
PPV: 100%		NPV: 99.7% (95% CI^b: 99.2, 99.9)

CI estimated using: MedCalc Software Ltd. Diagnostic test evaluation calculator. https://www.medcalc.org/calc/diagnostic_test.php (Version 20.009; accessed July 28, 2021)
rRT-PCR, real-time reverse transcription polymerase chain reaction; CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value
^aExact Clopper-Pearson Confidence Intervals
^bStandard logit confidence intervals[16]

ISSN: 1743-422X