Table E4.

Diagnostic performance of each characteristic in the determination of peanut allergy

Characteristic	AUC	Lower bound (95% CI)	Upper bound (95% CI)	Optimal Cutoff	Sensitivity (%)	Specificity (%)
Peanut-sIgE (kUA/L)	0.752	0.658	0.845	21.25	32.29	93.10
Ara h 1 sIgE (kUA/L)	0.668	0.559	0.777	2.68	32.86	90.00
Ara h 2 sIgE (kUA/L)	0.916	0.857	0.975	0.28	82.00	94.00
Ara h 3 sIgE (kUA/L)	0.672	0.563	0.780	1.10	33.33	87.10
Ara h 6 sIgE (kUA/L)	0.908	0.846	0.970	0.32	82.00	90.00
Ara h 8 sIgE (kUA/L)	0.624	0.511	0.737	0.02	60.00	31.43
Ara h 9 sIgE (kUA/L)	0.468	0.354	0.581	0.86	14.58	82.69
Peanut S A (%)	0.862	0.793	0.932	1.79	76.00	80.00
Ara h 1 S A (%)	0.716	0.613	0.820	2.29	44.00	100.00
Ara h 2 S A (%)	0.933	0.885	0.981	0.12	92.00	84.00
Ara h 3 S A (%)	0.738	0.639	0.837	0.05	64.00	80.00
Ara h 6 S A (%)	0.930	0.878	0.981	0.29	82.00	92.00
Ara h 8 S A (%)	0.618	0.507	0.730	0.043	54.00	72.00
Ara h 9 S A (%)	0.465	0.351	0.578	0.015	40.00	62.00
PD	0.898	0.831	0.964	0.48	84.00	88.00
WD	0.628	0.517	0.739	1.58	74.00	56.00
Avidity (%inhibition)∗	0.795	0.681	0.910	37.23	61.10	87.50

The AUCs, respective 95% CIs, optimal cutoffs, sensitivity, and specificity have been reported alongside each characteristic.

^∗Avidity cohort, n = 60.