Role of specific IgE to β-lactoglobulin in the gastrointestinal phenotype of cow’s milk allergy

Table 1 Figures of levels of specific IgE against some cow’s milk protein fractions in the G-I group and Anaphylaxis group

	GI allergy n = 39			Anaphylaxis n = 20			Significance
	Average	Range	Median	Average	Range	Median	p
Total IgE (IU/ml)	288	16–2360	144	457	295–2500	360	<0.01
Allergen specific IgE (kU/l)
Whole cow’s milk	0.74	0–2.48	0.26	189	30–586	146	<0.01
Casein	1.74	0–4.8	0.18	178	26–544	90	<0.01
α-lactoalbumin	0.83	0–3.7	0.23	21	9–34	21	<0.01
β-lactoglobulin	4.14	0.10–33.4	1.67	16.2	2.1–38	7.25	<0.01
Ratio casein/β-lactoglobulin	0.30	0.08–0.99	0.22	20	2.1–99	9.5	<0.01

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