Test concordance and diagnostic accuracy of three serological assays for detection of anti-SARS-CoV-2 antibody: result from a population-based sero-epidemiological study in Delhi

Table 5 Diagnostic accuracy of CLIA test kit in reference to QRBD and level of agreement

Test name		QRBD			Test accuracy of CLIA (95% CI)	Total agreement	Kappa (SE, 95% CI)
Test name		Positive	Negative	Total	Test accuracy of CLIA (95% CI)	Total agreement	Kappa (SE, 95% CI)
CLIA	Positive	1084 (99.2)	8 (0.8)	1092 (100.0)	Sensitivity: 42.9% (41.0–44.9%) Specificity: 99.0% (98.1–99.5%)	56.8%	0.26 (SE = 0.012) (95% CI 0.23 -0.28)
CLIA	Negative	1440 (63.6)	824 (36.4)	2264 (100.0)		56.8%	0.26 (SE = 0.012) (95% CI 0.23 -0.28)

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