Table 3.

Internal and external validity parameters of sIgE values to alpha-gal

	Population	Women	Men
Internal Validity Parameters
Sensitivity	0.97	0.67	1.00
Specificity	0.89	0.95	0.80
False positive rate	0.11	0.05	0.20
False negative rate	0.03	0.33	0.00
Positive probability ratio	9.00	13.33	5.00
Negative probability ratio	0.03	0.35	0.00
External Validity Parameters
Positive predictive value	0.82	0.50	0.86
Negative predictive value	0.98	0.97	1.00
Global value	0.92	0.93	0.91