Table 2.

Statistical Parameters of AgB1 and AgB2 ELISA at the Best Cutoff Values

Antigen	Sensitivity, %	Specificity, %	AUC (SE) [95% CI]	Youden Index	Likelihood Ratio
					Positive	Negative
AgB1	85.11	97.19	0.959 (0.012) [.932–.977]	0.8230	30.27	0.15
AgB2	84.04	83.94	0.923 (0.015) [.889–.949]	0.6798	5.23	0.19

Abbreviations: AgB1, antigen B1; AgB2, antigen B2; AUC, area under the (receiver operating characteristic) curve; CI, confidence interval; ELISA, enzyme-linked immunosorbent assay; SE, standard error.