. Author manuscript; available in PMC: 2018 Jul 10.

Published in final edited form as: J Thromb Haemost. 2017 May 11;15(6):1203–1212. doi: 10.1111/jth.13692

Table 4.

Operating characteristics of IgG-specific and polyspecific ELISA

	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)	PLR^*	NLR^*
IgG-specific	0.97 (0.97–0.99)	0.87 (0.85–0.88)	0.56 (0.52–0.61)	0.99 (0.99–1.00)	7.38	0.03
Polyspecific	0.97 (0.97–0.99)	0.82 (0.80–0.84)	0.32 (0.28–0.35)	0.99 (0.99–1.00)	5.07	0.03

CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; PLR, positive likelihood ratio; NLR, negative likelihood ratio.

Calculated as point estimates from sensitivity and specificity.