Table 2.

Diagnostic performance of various tests for allergy to fresh pasteurised cow's milk based on a recent meta‐analysis of diagnostic studies for all ages. ¹³

Diagnostic tests	Cut‐offs	Sensitivity	Specificity
	(95% CI)	(95% CI)	(95% CI)
Skin prick test to cow's milk extract (mm)	4 (3–8)	0.52 (0.24–0.79)	0.8 (0.65–0.90)
Specific IgE to cow's milk extract (KU/L)	3.5 (0.9–10.5)	0.82 (0.59–0.94)	0.92 (0.80–0.97)
Specific IgE to casein (KU/L)	2.6 (1.0–5.3)	0.67 (0.53–0.78)	0.93 (0.85–0.97)

Abbreviation: IgE, immunoglobulin E.