Table II.

Sensitivity and specificity of specific IgE against hen’s egg and its major allergens

Variable	Sensitivity (%)	Specificity (%)	Youden index
Cut-off for Gal d 1 IgE ≥ 1.460 kUA/l	55	90	0.45
Cut-off for Gal d 2 IgE ≥ 2.310 kUA/l	55	80	0.35
Cut-off for recombinants’ sum ≥ 3.335 kUA/l	64	81	0.45
Cut-off for egg white IgE ≥ 0.975 kUA/l	85	66	0.51
Cut-off for egg yolk IgE ≥ 0.370 kUA/l	79	68	0.47