Table 2.

Performance parameters of each in-house ELISA.

	Amine oxidase	Complement C5	Serotransferrin
Linear ranges	6.25–400 ng/ml	4.69–300 ng/ml	0.76–8.67 mg/ml
LLOD	3.13 ng/ml	2.34 ng/ml	0.51 mg/ml
Recovery rates	80–120%	80–120%	80–120%
AUC-ROC (95% CI)	0.8935 (0.7906–0.9964)	0.9290 (0.8484–1.010)	0.8580 (0.7291–0.9869)
Cut-off values	192.0 ng/ml	176.5 ng/ml	2.1 mg/ml
Sensitivity %	72.2%	77.8%	77.8%
Specificity %	94.4%	94.4%	83.3%
Odds ratio	13.00	14.00	4.67
Positive predictive value	93.8%	94.3%	84.6%
Negative predictive value	74.3%	78.4%	76.2%