Table III.

Diagnostic properties of the LDC in relation to OFC outcome in 198 children with suspected IgE-mediated food allergy

Diagnostic properties of LDC	Value
True negative (no. of patients)	165
True positive (no. of patients)	10
False negative (no. of patients)	21
False positive (no. of patients)	2
Specificity (%, 95% CI)	98% (95.3-99.8)
Sensitivity (%, 95% CI)	32% (17.3-51.5)
Positive predictive value (%, 95% CI)	83% (50.9-97.0)
Negative predictive value (%, 95% CI)	89% (83.0-92.7)
Positive likelihood ratio	26.9
Negative likelihood ratio	0.69
False-negative rate	68%
False-positive rate	1.2%